CFD Jobs Database - Job Record #19115
Job Record #19115 |
Title | PHD - Subgrid-scale modeling of thermo-diffusive instabilities |
Category | PhD Studentship |
Employer | IFPEN |
Location | France, Rueil-Malmaison |
International | Yes, international applications are welcome |
Closure Date | Tuesday, October 01, 2024 |
Description: |
The increasing use of hydrogen (H2) in industry and transport poses problems in
terms of the safety of industrial installations. Indeed, H2 is a volatile and
flammable molecule which can cause destructive explosions. Computational fluid
dynamics (CFD) constitutes an important tool for designing systems and is a
complement to experiments, which are expensive and difficult to implement. CFD
simulations must nevertheless achieve a high level of fidelity. In the case of
the combustion of H2, the numerical models must in particular take into account
the effects of thermo-diffusive instabilities, which are a consequence of the
very high diffusivity of hydrogen, and which generate a significant acceleration
of the flames. These effects are, however, rarely taken into account in CFD
models, and are often based on laminar flames, while the interactions between
instabilities and turbulence are neglected. The objective of this PhD is to
develop a large eddy simulation model taking into account the effects of thermo-
diffusive instabilities, as well as their interactions with turbulence. The
model will be developed in the formalism of the thickened flame model (TFM),
currently used at IFPEN. The thesis will take place according to the following
steps: (i) Implementation of direct numerical simulations (DNS), making it
possible to understand and acquire detailed data on the interactions between
instabilities and turbulence; (ii) development of a model in a TFM context and
validation on canonical cases; (iii) test of the model on a practical case of
industrial explosion.
Academic requirements: University Master degree involving CFD, physics and/or
numerical modelling
Language requirements: Fluency in French or English, willingness to learn French
Academic supervisor: Dr Olivier COLIN, IFPEN, ORCID : 0000-0002-8947-3490
|
Contact Information: |
Please mention the CFD Jobs Database, record #19115 when responding to this ad. |
Name | Cédric Mehl |
Email | cedric.mehl@ifpen.fr |
Email Application | Yes |
Record Data: |
Last Modified | 16:00:20, Friday, April 19, 2024 |
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