2014 FLOW-3D Americas Users Conference: User presentations, development talks, and advanced training for the water & environmental training, September 9-10 in Toronto, ON. Learn more about the conference and register online at http://www.flow3d.com/2014-flow-3d-americas-users-conference
In this month’s issue, we focus on the use of CFD software as a learning tool for training the next generation of design engineers. We spoke with Professor Vincent Capece of the University of Kentucky’s College of Engineering, who agreed to share his recent experience using ADS software in his “Aerodynamics of Turbomachinery” class at the University of Kentucky.
Available for free in PDF format. Over 7,000 downloads since October 2013.
This is a `unique' book on Computational Fluid Dynamics (CFD). The first half `talks' about governing equations ranging from simple model equations used for algorithm development to the full Euler and Navier-Stokes equations in various forms with complete eigen-structures. Basic materials such as vector identities and coordinate transformations are also included for better understanding and manipulating the governing equations in various forms. The other half `talks' about methods for deriving exact solutions and numerous exact solutionsreadily employed for accuracy verification of a CFD code. This book can be very useful for students studying basics of CFD as well as researchers working in CFD as it contains lots of information that can hardly be found in other CFD books.
Softcover. 303 pages (299 in PDF), 8.5" x 11", perfect binding, white interior paper, black and white interior ink (color in PDF), white exterior paper, full-color exterior ink. Published on October 1, 2013.
The following new or updated CFD jobs have been posted in the
CFD Jobs Database since last week (Sun, Aug 10, 2014):
#12121: Multiscale modelling of segregation in granular chute flow
University of Edinburgh, PhD Studentship
#12120: Senior Research Assistant/Research Fellow in CFD for the Urban
University of Southampton, PostDoc Position
United Kingdom, Southampton
#12119: PhD Position. Reactive Bubbly Flows
Mathematical Modeling and Analysis, TU Darmstadt (CSI), Job in Academia
Germany, Hessen, Darmstadt
#12118: PhD (m/f) in the field of geophysical turbulence
Max Planck Institute for Meteorology, PhD Studentship
#12117: Computational Fluid Dynamics Engineer
Innovative Scientific Solutions, Inc., Contract Work
United States, Wright Patt Air Force Base, OH
#12116: PhD position in modelling of reactive flow in porous media
Faculty of Physics, University of Warsaw, PhD Studentship
Poland, Poland, Warsaw
#12115: Research Associate in Urban Flood Modelling
Pennine Water Group, University of Sheffield, PostDoc Position
United Kingdom, South Yorkshire, Sheffield
#12114: Research Engineer – Dust Explosion Modelling
GexCon AS, Job in Industry
#12113: Postdoctoral Researcher
University of Wyoming, PostDoc Position
United States, WY, Laramie
#12112: Post-Doc in Europe for International Researcher
European Research Center, PostDoc Position
* None *
#12111: PHYSICIST / ENGINEER - Physiological Fluid Physics
EXA Corporation, Job in Industry
United States, MASSACHUSETTS, Burlington (Metro Boston)
#12110: Postdoctoral Scientist in vegetation-climate interactions
Max Planck Institute for Meteorology, PostDoc Position
#12109: B4 computational fluid dynamicist
Maths Sciences Unit, Health & Safety Laboratory, Job in Industry
United Kingdom, Derbyshire, Buxton
#12108: 3D CAD and CFD modeller
Confidential - Engineering Consulting Company, Job in Industry
South Korea, Seoul, Gangnam, Seoul
#12074: Research Fellow in Façade Fire Modelling
University of Warwick, PostDoc Position
United Kingdom, Coventry
#12037: PERMANENT RESEARCH POSITION FOR EU CFD DOCTOR
RS2N, Job in Industry
France, South East
#11352: MS/Ph.D. studentship
Gyeongsang National University, PhD Studentship
South Korea, Jinju
To learn more about these jobs please visit the CFD Jobs Database at http://www.cfd-online.com/Jobs/
51st NIA CFD Seminar
Topic: First-, Second-, and Third-Order Hyperbolic Navier-Stokes Solver
Date: Tuesday, August 26, 2014
Time: 11:00am-noon (EDT)
Room: NIA, Rm137
Speaker: Hiro Nishikawa
Speaker Bio: Dr. Hiro Nishikawa is Associate Research Fellow, NIA. He earned Ph.D. in Aerospace Engineering and Scientific Computing at the University of Michigan in 2001, worked as a postdoctoral fellow on adaptive grid methods, local preconditioning methods, multigrid methods, rotated-hybrid Riemann solvers, high-order upwind and viscous schemes, etc., and joined NIA in 2007. His area of expertise is the algorithm development for CFD, focusing on multigrid methods and hyperbolic methods for robust, efficient, highly accurate viscous discretization schemes.
Abstract: Is it possible that a third-order CFD solver is less expensive on a given grid than a conventional second-order solver? No, it is impossible because a higher-order scheme requires more work on the same grid. However, as history demonstrates, it only takes a radical idea to turn the impossible into the possible. This talk will investigate whether the hyperbolization of the viscous terms is radical enough to make it happen. The Navier-Stokes equations are made hyperbolic, discretized by first, second, and third-order finite-volume schemes with upwind fluxes, and solved by a fully implicit solver: Newton’s method for the first-order scheme, and a defect correction method for others. The developed solver will be compared with a conventional second-order solver for some simple but realistic viscous flow problems, focusing on computation time and accuracy especially in the viscous stresses and heat fluxes on fully unstructured viscous grids.
Additional information, including the webcast link, can be found at the NIA CFD Seminar website, which is temporarily located at
Subscribe the NIA CFD Seminar announcement blog to receive announcements and reminders by e-mail.
FORT WORTH, TX (12 August 2014)—Pointwise and AeroDynamic Solutions (ADS) will present a webinar entitled “Mesh Topology Influence on Volute Aerodynamic Performance Computed Using Code Leo” on 27 August at 10 a.m. CDT (GMT -5).
The webinar will be 30 minutes including questions and answers. To register, go to www.pointwise.com/webinar.
Volute designs present a challenging geometry for meshing. Multi-block structured meshing has the advantage of reducing numerical diffusion and a higher node-to-cell count ratio, making it attractive for problems when accurately predicting performance is key. However, volute features like that of the tongue region, require a significant amount of effort to obtain a purely hexahedral mesh. Volute performance simulations depend critically on the cells nearest the boundary, as the core of the flow typically has relatively low circulation, implying hybrid meshing could potentially provide similar accuracy with more automation.
This webinar will focus on a generic volute design. Simulations were performed using Code Leo, a computational fluid dynamics (CFD) solver developed by ADS, on three different grid types generated with Pointwise: multi-block structured, unstructured with a hexahedral boundary layer, and unstructured with a prismatic boundary layer. The process for generating each grid will be described and the relative pros and cons regarding meshing time and ease of modification evaluated. The numerical solutions from each of the three mesh topologies will be examined for accuracy and overall solution turnaround time.
The webinar will demonstrate how to
• Design a fully structured mesh topology for a generic volute geometry and use the elliptic solver to improve cell quality.
• Strategically create a structured surface mesh that promotes high quality unstructured hexahedral extrusions.
• Rapidly generate unstructured surface meshes and viscous volume meshes using T-Rex (anisotropic tetrahedral extrusion).
• Compare different mesh topologies for solution accuracy.
• Compare and contrast mesh topologies to suit your application.
Presenters will be Travis Carrigan and Dr. John Rhoads from Pointwise and Will Humber and Michael Ni from ADS.
Mr. Ni, ADS product marketing and development manager, leads the teams focused on product features, workbench development, support and training. Mr. Ni earned a B.S. degree in computer engineering from the University of Illinois Urbana-Champaign and has more than 10 years’ industry experience in computer architecture and software development.
Mr. Humber, ADS senior CFD engineer, is interested in heat transfer, unstructured mesh generation and optimization. His responsibilities include development of meshing and post-processing tools as well as customer support. He holds a B.S. and M.S. in Aerospace Engineering from The Pennsylvania State University.
Pointwise, Inc. is solving the top problem facing engineering analysts today – mesh generation for CFD. The company’s Pointwise software generates structured, unstructured and hybrid meshes; interfaces with CFD solvers, such as ANSYS FLUENT, STAR-CCM+, ANSYS CFX and OpenFOAM as well as many neutral formats, such as CGNS; runs on Windows (Intel and AMD), Linux (Intel and AMD), and Mac, and has a scripting language, Glyph, that can automate CFD meshing. Large manufacturing firms and research organizations worldwide rely on Pointwise as their complete CFD preprocessing solution.
Pointwise is a registered trademark and Pointwise Glyph and T-Rex are trademarks of Pointwise, Inc. All other trademarks are property of their respective owner.
ADS is a provider of design and analysis software for the turbomachinery industry. Their software suite is built around the aerospace-class CFD solver, Code LEO, an HPC enabled solver capable of handling the most challenging analyses. Organizations trust ADS in the design of their radial and axial compressors and turbines when high fidelity and fast turnaround time are required.