Needed: CFD Consulting Engineer

Based in our McKinney, TX office, the CFD Consulting Engineer plays a critical role helping showcase our innovative solutions to prospective and existing customers. The engineer will help nurture prospects through the sales pipeline and implement the solutions. This is an exciting opportunity for an energetic team player with a drive for achievement who is looking to grow their sales engineering career. The CFD Consulting Engineer position is to engineer a solution to customers' needs and put together a solution that meets the customer’s technical and business requirements. The position will also work with the other team members to ensure successful projects are secured and delivered. The position will also supply support to marketing operations staff as necessary.

The Applications Engineer reports to the President currently but may change over time.

Duties and Responsibilities:

• Design Requirements
• Perform heat transfer, fluid dynamics, and cost analysis, and other calculations to determine the best solution for each project
• Review bid package provided to determine the requirements each project and determine the best path to securing an order and successfully delivering an order
• Assemble various costs associated with providing products to the customer
• Assemble various costs associated with implementing the products involved in the particular project
• Prepare technical proposal packages that include a narrative explaining the solution
• Make site visits to gain a full understanding of the requirements and challenges that a project carries and provide customer and project support
• Travel up to 25%, generally USA based but may include some international
• Perform CFD modeling to help determine ideal solution
• Work with project managers and design engineers after a project is awarded to help ensure the project is completely smoothly
• Answer technical questions, trouble-shoot warranty issues and provide order support

Skill/Job Requirements:

• 4 year engineering degree and or 3-5 years of experience in similar field
• Must be proficient in use of one or more major CAD package, CFD software tools and Microsoft Office suite
• Must be self-motivated, responsible and dependable with ability to work independently as well as in group/team setting
• Excellent verbal and written communication skills with professional sales presence on phone and in person
• Mechanical engineering knowledge that can be applied to design and problem solving
• U.S. citizenship, permanent residency or otherwise legally authorized to work in the USA
• Software products used: ParticleWorks, ANSYS, PTC Creo, Flownex SE

Enginsoft LLC is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, sex, sexual orientation, gender identity, age, status as a protected veteran, status as a qualified individual with a disability, or any other trait protected by law.

If interested, please send a resume and brief cover page discussing how your skills and experience would be a match for this position.

I have two graduate student  positions available, starting from September 2020, at the Biomedical 
Engineering Department in the University of Wisconsin-Milwaukee. The focus of research will be on cellular 
mechanics in cancer. You can read more here: https://sites.uwm.edu/dabaghlab/

Applicants are expected to have an earned M.Sc or B.S. degree in biomedical engineering, mechanical 
engineering, computer engineering/science, or applied mathematics. Successful candidates will be expected 
to carry out multidisciplinary research, present the results in international conferences, and publish scholarly 
papers. The position is available for the duration of the PhD. Salary and benefits are in accordance with the 
tables of the University of Wisconsin-Milwaukee for graduate students.

Strong background in fluid mechanics, solid mechanics, transport phenomena, and numerical methods is 
required. Background in C++ is a PLUS though high interest and some skills in programming is required. 
Interested applicants are encouraged to send their CV and transcripts along with 1-2 pages description of 
their interest and background to Dr. Mahsa Dabagh at dabaghme@uwm.edu. Please list at least three 
references. 

• EEO/AA Policy
University of Wisconsin-Milwaukee is an equal opportunity employer.
 

SPIN Centre for Chemical Engineering
Application for the post of Assistant Professor (Maître Assistant) in Numerical simulation of multiphase processes


The theme to be reinforced is digital simulation. We build original models from experimental field studies or in instrumented reactors and pilots developed and built by our engineering team.
The challenge for our team is to couple these multiphase models using simulators by integrating thermochemistry, transfers, crystallization / dissolution kinetics and fluid mechanics to simulate real size systems (from liter to a few tens of cubic meters, from a centimeter to a few kilometers). The position is part of a broader dynamic bringing together some of the staff of the SPIN center for the development of digital twins.
2
1) Candidate profile and assessment criteria
The candidate should hold a doctorate where he acquired an experience in chemical engineering and numerical simulation (for instants CNU 60, 61 ou 62). Significant experience of teaching in the aforementioned fields (teaching instructor, contracted teacher and/or ATER status (temporary teaching and research assistant status)) at under-graduate or post-graduate cycle levels will be appreciated.
The successful candidate will have experience in at least one of the following research them’s:
- process engineering/chemical engineering, in particular applied to dissolution - crystallization - reaction
- fluid mechanics, in particular multiphase systems,
- population balances,
- multiscale modeling and reduction of models,
- artificial intelligence (machine learning),
- high performance computing,
- data processing / integration of data for optimization.
The main evaluation criteria of the candidate will be as follows (non-exhaustive list):
- significant experience in teaching at the second or third cycle level in the aforementioned fields and in the development and implementation of new teaching methods,
- scientific production: number, quality and impact of publications appraised by peers and referenced in international databases such as Scopus, Web of Science, PubMed, Nature Index, arXiv.org,…
- ability to support a ‘Habilitation à Diriger des Recherches’ in the 5 to 7 years following his recruitment,
- capacity for integration into the project of the platform, the center and the research laboratory,
- English proficiency,
- taking into account the international development projects of the School, significant international experience will be highly appreciated. Otherwise, mobility in a foreign partner establishment must be considered within three years of recruitment.
Furthermore, the jury will assess the candidate's potential to:
- conduct partnership research: direct industrial partnerships, collaborative research, support for start-ups, etc.,
- develop and lead full international partnerships (training and research).
2) Missions
Teaching
The teaching mission consists of providing lessons, tutorials and practical work as well as supervision of projects and internships, in all the courses of Mines Saint-Etienne, including the Ingénieur Civil des Mins (ICM). The courses will also concern research Masters, doctoral training, continuing education and under salaried status, Specialized Masters.
The candidate should be able to cover a fairly wide spectrum among existing or future lessons in the field of chemical and / or environmental engineering, including for example transfers, fluid mechanics (multiphase flows, rheology of suspensions, turbulence , hydrogeology, ...), flowsheet simulation, unit operations.
The recruited person will be actively involved in the teaching teams in charge of the training courses mentioned above. As such, the design of new activities and the development of innovative pedagogies, in particular thanks to digital functionalities, are integral parts of the teaching mission.
3
The candidate must be able to deliver his lessons and possibly MOOCs in English.
The design, supervision and facilitation activities are taken into account in the minimum annual hourly volume to be provided.
Research
The candidate will join the SPIN center (PEG department) of Mines Saint-Etienne and the Georges Friedel Laboratory (Processes in Dispersed and Multiphasic systems- PMDM team) and will participate in the development of the digital twin platform. It will strengthen skills in numerical process modeling in multiphase environments until the construction of process simulators on a real scale (Technology Readiness Level from 4 to 7). He will see to developing skills complementary to the other specialists of the platform, in particular on the aspects which make it possible to address the specific themes of the PEG department:
• treatment and recovery of solid mineral matter,
• recycling and recyclability (water, soil, mineral matter, gas),
• transfers for risk prevention and preservation and restoration of natural and urban areas,
• transport and storage of energy.
Even if its main activity will focus on digital modeling, the future recruited will also participate in the development of instrumented experimental devices, in particular in the research and implementation of measurement instruments necessary for monitoring and obtaining data for model validation.
The missions entrusted to it are to:
- conduct its research in line with the objectives of the PEG department, the SPIN center, the LGF laboratory and Mines Saint-Etienne in general.
- co-supervising theses and research projects, promoting their results (publications, patents, etc.)
- participate in setting up collaborative projects, with academic and / or industrial, national and / or international partners
- participate in the search for funding from industials and public (ANR, ADEME, Horizon Europe, etc.) and private organizations
- prepare the defense of the ‘Habilitation à Diriger des Recherches’ in the 5 to 7 years following his recruitment.
These missions will be carried out on the Saint-Etienne Campus (42) of the EMSE, in the SPIN center, within the Georges Friedel UMR CNRS 5307 Laboratory.
3) Candidate assessment criteria:
The main candidate assessment criteria are as follows (non-exhaustive list):
- Significant teaching experience (development of digital courses, reference works…) in the previously mentioned fields, at under-graduate or post-graduate level, will be appreciated, along with development of new teaching methods.
- Capacity to reinforce the research theme in numerical simulation in multiphase flows.
- Capacity to successfully integrate the team project, the centre and the research laboratory
- Scientific production: number, quality and impact of peer-reviewed original research papers, book chapters or conference proceedings indexed in international electronic databases such as, e.g.: Scopus, Web of Science, PubMed, Nature Index, arXiv.org …
- Partnership-based research: direct industrial partnerships, collaborative research, support to start-ups …
- International partnerships
4
- Good command of the English language, significant international experience
- Other skills or aptitudes : aptitude for team work, constructing projects, English
- Capacity to obtain the Accreditation to Supervise Research qualification (Habilitation à Diriger des Recherches) in the five to seven years following the candidate’s recruitment
4) Recruitment Conditions
By application of the specific status of teaching staff of the Mines Telecom institute (modified decree n° 2007-468 of the 28th March 2007), candidates should hold a doctorate diploma or a similar recognized qualification level, equivalent to the required national diplomas.
In addition, candidates should have European Union citizen status as of the day of the application submission (law 83-634 of the 13th July 1983 referring to the rights and obligations of public employees; Art. 5 and 5 bis).
Required date for taking up the position: 1st October 2020
5) Application procedures
The application file should include:
- An application cover letter
- A curriculum vitae outlining teaching activities, research work and where appropriate, relations with economic and industrial sectors (maximum 10 pages)
- Recommendation letters, at the discretion of the candidate,
- A copy of the Doctorate diploma (or PhD),
- A copy of an identity document
These documents should be addressed for the attention of the Director of the École Nationale Supérieure des Mines de Saint-Étienne, at the latest by the 30 April 2020, date as per postmark, and sent to:
École nationale supérieure des Mines de Saint-Étienne
For the attention of Madame Elodie EXBRAYAT
Department of Personnel and Human Resources
158, Cours Fauriel
42023 Saint-Étienne cedex 2
France
Candidates selected for an interview will be informed rapidly. Part of the interview will be held in English. Cover letters, CVs and application files written in English will be accepted, but applicants will have to demonstrate in their application file their ability to efficiently communicate in French with students, fellow faculty members and the school administration. For those invited to be interviewed, the same will be expected in oral form and tested by the selection committee.

Title : Study of flame propagation and acceleration mechanisms in heterogeneous turbulent flows.

In advanced combustion modes for ground propulsion (HCCI: Homogeneous Charge Compression Ignition), 
aeronautic propulsion (CVC: Constant Volume Combustion, RDE: Rotative Detonation Engine) or space 
propulsion, flames always propagate in turbulent flows featuring several phases and significant 
heterogeneities in temperature and composition. Most of these modes were under study over the last two 
decades in order to improve thrust and to reduce fuel consumption or pollutant emissions of propulsive 
systems. One of the key mechanisms that remains to be studied in detail involves interactions between flame 
propagation and auto-ignition. These interactions are responsible for flame accelerations that may lead to 
transition to auto-ignition waves or detonations. Despite the prolific scientific literature on such interactions, 
the identification and analysis of the various physical mechanisms involve in these flows still require academic 
experimental and numerical studies. In addition, the strong development of computational tools over the past 
few decades allows to perform realistic numerical simulations of practical combustion devices. However, 
these tools must be associated with robust modeling strategies able to deal with various turbulent 
combustion regimes and their transitions: deflagration/auto- ignition/detonation. Therefore, the final objective 
of this thesis is to build a numerical modeling strategy that can be applied to Large Eddy Simulation (LES) and 
coupled with experimental results. The existing devices under study in our research team (RCM: Rapid 
Compression Machine, CV2: Constant Volume Vessel, DAID: Deflagration-Auto-Ignition-Detonation vessel) 
will provide the experimental data required for numerical simulations. In a first step of the thesis, the 
candidate will perform Direct Numerical Simulations (DNS) of very simplified flows in order to analyze basic 
physical mechanisms and to propose a relevant modeling strategy for deflagration/auto-ignition transition. In 
a second step, the DNS tool will also be used for simulations of more realistic flows that are representatives 
of small parts of the experimental devices in order to further analyze experimental results and the model 
behavior. Eventually, the LES of the whole experimental devices will be performed using Open-Foam and the 
numerical results will be used to complete experimental analyses for a better understanding of the physical 
mechanisms.

CFD modeling of the thermal energy storage for the transport of frozen food
products

Context: Food transport, including motive power and refrigeration, is estimated 
to be responsible for around 2% of total greenhouse gas emissions in developed 
countries [1]. Road transport refrigeration equipments need to operate reliably 
in harsher environments compared to stationary equipments. Legislations exist 
and provide common standards for temperature-controlled transport vehicles and 
tests to be done on such equipments for certification purposes [2]. Constraints 
due to available space, noise and weight make also them less efficient than 
stationary systems. For road transport vehicles, different types of 
refrigeration units exist depending mainly on the size of the vehicle and its 
load: vapour compression systems with a vehicle or an auxiliary alternator 
unit, a direct belt drive or an auxiliary diesel unit. The majority of medium 
to large vehicles use refrigeration units that include a self-contained diesel 
engine. Running at full capacity to guarantee -20°C within the trailer, the 
fuel consumption of this unit is up to 5 liters per hour. To overcome
that, eutectic systems have been developed and used in prototype vehicles in 
Canada. They consist of tubes, beams or plates filled with a phase change 
material to store energy and produce a cooling effect. They are charged at 
night and they operate silently during the day for a specific duration of
time. Such systems may be suitable for small deliveries where the heat loss 
though frequent door openings can be a major concern. The heat and mass 
transfers inside a refrigerated chamber exhibit some similarities with the 
truck trailer configuration [3-5]. To the best of our knowledge, only Tso
et al. [6], and more recently Lafaye de Micheaux et al. [7], investigated the 
velocity and temperature distributions in a truck trailer with different door 
openings but without any refrigeration system. The model developed by Benchikh 
Lehocine et al. [8,9] was the first to include eutectic plates and
fans within the trailer.

Objectives: A reliable refrigeration system based on eutectic material 
integrated in truck trailers for food transport does not exist yet. The major 
problem stems from the multiple door openings that occur for loading or 
unloading during a typical working day. In humid countries (like in Québec
during summer), humid air enters the trailer. It induces condensation, creating 
ice on the plates’ surface, which then blocks heat transfer between the 
eutectic plates and the air within the trailer. The main objective of this 
project is to design a reliable refrigeration system based on eutectic
materials able to operate under different loads and for different transport 
temperature requirements. The specific objective is the extension of the CFD 
model developed by Benchikh Lehocine et al. [8,9] to test different technical 
solutions (design and location of the plates, fans, addition of an air
curtain) for realistic operating conditions (heat losses, loads, ambient 
conditions. The choice of both the appropriate eutectic mixture and the design 
of the plates (addition of a metal foam, specific coating to prevent ice 
formation) depending on the required transport temperature is still an open
question in the literature, as well as the influence of different loads on the 
temperature distribution within the trailer. These two parameters will be 
considered to propose a system applicable for a multi-compartment trailer.

Methodology: An advanced 3D numerical model has already been developed and 
validated using ANSYS Fluent [8,9]. It accounts for the conjugated heat and 
mass transfer inside a refrigerated truck trailer with an innovative way to 
model fans by imposing a source term in the momentum equations. Some numerical 
developments are however still required: addition of thermal losses
through the trailer walls, temperature- and humidity-dependent properties of 
air, simulation of different loads, integration of an air curtain at the 
opening back door. The main development will concern the modeling of the 
eutectic mixture fusion within the plates. This is indeed of prime
importance to obtain realistic unsteady results over an entire working day. The 
model will be developed using OpenFOAM, a free access software, to make the 
technological transfer to the partners easier and the calculations will be 
performed using the Compute Canada facilities.

Required skills: Master in mechanical engineering or in a related field. A good 
knowledge in fluid mechanics and heat transfer is required. Knowledge in 
numerical methods and a first significant experience in Computational Fluid 
Dynamics using one of the following softwares, ANSYS Fluent/CFX or ideally 
OpenFOAM, would be appreciated. Canadians, Frenchs and permanent residents of 
Canada will be given priority. Applications must meet diversity and equity
objectives.

Institution: This is a joint PhD position. Thus the two workplaces are (i) the 
faculty of mechanical engineering at Université de Sherbrooke (Québec, Canada) 
with a strong collaboration with Laboratoire des Technologies de l’Énergie 
(Hydro-Québec, Shawinigan) and Emerson Canada and (ii) CETHIL (UMR 5008, INSA 
Lyon). Good salary (net funding of 23000$ per year) and working conditions are 
offered. The suitable starting date for this position is fall 2020. Interested
candidates are encouraged to contact: Professors Sébastien Poncet
(sebastien.poncet@USherbrooke.ca) and Jocelyn Bonjour (jocelyn.bonjour@insa-
lyon.fr).

References
[1] Tassou S.A., De-Lille G., Lewis J., Food transport refrigeration, Report 
from Brunel University, 2007.
[2] UN Economic commission for Europe – Inland Transport Committee, ATP as 
amended on 7 November 2003 – Agreement on the International Carriage of 
Perishable Foodstuff and on the Special Equipment to be used for such Carriage, 
2003.
[3] Azzouz, A., Gossé, J., Duminil, M. Détermination expérimentale des pertes 
de froid occasionnées par l’ouverture d’une porte de chambre froide 
industrielle, Revue Internationale du Froid 16 (1), p. 57-66, 1993.
[4] Hoang, M.L., Verboven, P., De Baerdemaeker, J., Nicolaï, B.M. Analysis of 
the air flow in a cold store by means of computational fluid dynamics, 
International Journal of Refrigeration 23, p. 127-140, 2000.
[5] Foster, A.M., Swain, M.J., Barrett, R., James, S.J. Experimental 
verification of analytical and CFD predictions of infiltration through cold 
store entrances, International Journal of Refrigeration 26, p.918-925, 2003.
[6] Tso, C.P., Yu, S.C.M., Poh, H.J., Jolly, P.G. Experimental study on the 
heat and mass transfer characteristics in a refrigerated truck, International 
Journal of Refrigeration 25, p. 340-350, 2002.
[7] Lafaye de Micheaux, T., Ducoulombier, M., Moureh, J., Sartre, V., Bonjour, 
J. Experimental and numerical investigation of the infiltration heat load 
during the opening of a refrigerated truck body, International Journal of 
Refrigeration 54, p. 170-189, 2015.
[8] Croquer S., Benchikh Lehocine A.E., Poncet S. Numerical modeling of heat 
and mass transfer in a refrigerated truck trailer, 25th IIR International 
Congress of Refrigeration, Ed. V. Minea, International Institute of 
Refrigeration, p.3574-3581, Montréal, August 24-30, 2019.
[9] Benchikh Lehocine A.E., Croquer S., Poncet S., Modélisation des échanges 
thermiques dans le compartiment de stockage d'un camion frigorifique équipé du 
système Frygy Cube, CRSNG / Frygy Cube, Contract 376083676, Report, 2017.

Internship/Bachelor/Master

Background:
For the CFD modelling of bubbly flows at the component-scale the two-fluid
methodology has proven to be the most effective approach. For the various
interfacial forces, turbulence sources and bubble coalescence and breakup
processes a multitude of partly empirical closure models exist in the
literature, each validated with the data from a particular experiment and a
different flow configuration. The aim at the HZDR is to establish a single set
of closure models that reflects local flow phenomena independent of the case
investigated [1]. This set of baseline models should give the overall best
agreement with the vast amount of data from various applications such as pipe
flows, bubble columns or airlift reactors. The current set of baseline models
has been established from the analysis of numerous cases that have already been
added to an extensive case repository.
This set of baseline models should now be tested with a new TOPFLOW data set,
which was recently produced at the HZDR [2]. The new experimental data includes
measured liquid velocities and bubble sizes for the flow in a constricted
vertical pipe. The goal of the project is to reproduce those new cases with the
CFD-software OpenFOAM and to add them to our baseline repository.

References:
[1]	R. Rzehak et al., Chem. Eng. Sci.  157, pp. 147-158, 2017.
[2]	M. Neumann-Kipping et al., Int. J. Multiph. Flow 2020 (submitted).

Main tasks:
    • Setting up a new TOPFLOW case in OpenFOAM
    • Analysis of initial and boundary conditions
    • Comparison of computed results with measured TOPFLOW data
    • Use of the established setup on multiple TOPFLOW cases
    • Adding the TOPFLOW cases to the baseline case repository
    • Report and presentation of results

Duration:
6 months

Requirements:
    • Experience using CFD software, preferably OpenFOAM
    • Excellent written and verbal communication skills in English
    • Team player with a strong interest in multiphase flows

Am Institut für Mechanische Verfahrenstechnik und Mechanik (MVM) sowie am Institut für Angewandte und Numerische Mathematik (IANM) suchen wir zum nächstmöglichen Zeitpunkt eine/n

Wissenschaftliche/n Mitarbeiter/in

für unser Team Lattice Boltzmann Research Group. Im Rahmen eines Forschungsprojektes zur Simulation und Visualisierung (insbesondere VR/AR und Apps) von Strömungen ist eine Vollzeitstelle befristet zu besetzen. Nach Einarbeitung wird nach TV-L, E 13 vergütet. Es besteht die Möglichkeit zur Promotion.

Sie verfügen über einen überdurchschnittlichen Hochschulabschluss (Diplom (Uni)/Master) im Bereich Ingenieurwesen, Mathematik, Physik oder Informatik. Neben Freude an der wissenschaftlichen Problemanalyse sowie an mathematischen und/oder verfahrenstechnischen Fragestellungen erwarten wir von Ihnen gute Programmierkenntnisse, Initiative, Ideenreichtum und gute Kommunikationsfähigkeiten in Wort und Schrift der deutschen und englischen Sprache. Auf Arbeit im Team wird großen Wert gelegt. 

Das Karlsruher Institut für Technologie ist bestrebt, den Anteil an Frauen zu erhöhen und begrüßt deshalb besonders die Bewerbung von Frauen. Schwerbehinderte Bewerber/innen werden bei gleicher Eignung bevorzugt berücksichtigt.

Bewerbungen mit den üblichen Unterlagen richten Sie bitte vorzugsweise elektronisch in einer pdf-Datei an

Dr. Mathias J. Krause
Karlsruher Institut für Technologie
Lattice Boltzmann Research Group
Straße am Forum 8
76131 Karlsruhe
Tel: 0721-608-44191
E-Mail: mathias.krause@kit.edu

W.L. Gore & Associates global support teams bring together extensive 
knowledge 
and collaborate closely to support our diverse portfolio of products that 
solve 
complex problems and perform in the most demanding environments. Learn more 
at 
gore.com/products/industries.

This position will be offered over the summer (June – August 2020) with the 
possibility to extend until December 2020.

If you are searching for a company where you can make a difference, we're 
looking for you. In this role, you will join a small but growing group that 
serves as a central resource for the division, working on specific projects 
with business and research groups and developing understanding and analysis 
tools for use by the broader engineering and scientific community, you will 
find no place better than the Gore facility.

The ideal candidate will:

· Be passionate about enhancing the cultures fundamental understanding of 
products that are the highest value in their class

· Be energized by working for a world-class manufacturer and collaborating on 
cross-functional teams

· Recognize the importance of building and maintaining strong interpersonal 
relationships

In this internship, you will use your expertise in scientific simulation 
methods to streamline analysis and facilitate discovery. You will develop 
complex numerical models, provide quantitative analyses, and train across 
multiple disciplinary functions.

Responsibilities include:
-Developing and modifying physics-based models for a variety of Performance 
Solutions Division applications
-Collaborating with technical associates to deliver useful quantitative 
analyses
-Reviewing and writing technical documents
-Presenting and communicating technical analyses to Gore associates

Required Job Qualifications:

-Graduate student in Mechanical/Chemical Engineering, Applied Mathematics, 
Mathematical Physics, or a comparable field

-Knowledge of numerical methods for solving nonlinear algebraic and 
differential equations

-Familiarity with computational fluid dynamics, CAD systems, or scientific 
computing
-Excellent knowledge of Microsoft Office

-Excellent communication and presentation skills

Desirable Job Qualifications:

-Knowledge of CFD simulation software packages such as StarCCM+, Comsol, 
and/or 
Ansys Fluent

-Experience in multiphase flow modeling including Volume of Fluid, Eulerian 
multiphase modeling, Discrete Element Method (DEM), and/or Lattice Boltzmann 
methods

-Material and kinetics model development

-Experience in Fluid Structure Interaction (FSI)

-Programming ability in Matlab or Python

-Proficient in using Solidworks

-Experience conducting experiments or collaborating with experimentalists

-Good technical writing skills