PhD Offer - 3D Numerical study on transpiration cooling by mesostructured porous walls: effects[...]

euraxess.ec.europa.eu - Jobboard; France; Sur place; EUR 40 000 - 60 000; Plein temps

Résumé du poste

A prestigious research institution in France seeks a researcher for a project on 3D numerical studies of transpiration cooling. The ideal candidate should possess specific knowledge in fluid mechanics, CFD, and combustion. Responsibilities include analyzing the cooling efficiency of additive manufactured porous plates and investigating transpiration flow mechanisms. This role offers a challenging environment with work flexibility and an opportunity to collaborate with an international team.

Prestations

Challenging environment

Enthusiastic co-workers

Work time flexibility

Professional travels and training

Qualifications

• Ability to work independently while incorporating team suggestions.
• Specific knowledge in fluid mechanics, CFD, combustion, and fire is expected.

Responsabilités

• Evaluate cooling efficiency for additive manufactured porous plates.
• Analyze transpiration flow through porous plates using 3D numerical modeling.
• Investigate effects of pore and solid partition arrangement.

Connaissances

Fluid mechanics

CFD

Combustion

Fire safety

Description du poste

Organisation / Company INSA Centre Val de Loire Department Bourges Laboratory PRISME Is the Hosting related to staff position within a Research Infrastructure? Yes

3D Numerical study on transpiration cooling by mesostructured porous walls: effects of wall configuration on the thermal protection performances

-=NO GRANT=-

No funding is provided. The applicants shall have their own proven funding resources. The research costs and high level expertise are provided by the research lab which is involved.

Research Proposal: Thermal protection is important for hot section components of several equipment related to power generation or jet propulsion, such as gas turbine engines and spaceflights, which generally suffers from high temperature and high heat flux gas flows. In fact, the high thermal load endured by scramjets can cause many damages to the combustion chamber walls of the engine which requires an efficient cooling of the latter. Among numerous cooling technologies, transpiration cooling was considered as one of the most effective active cooling methods to reduce the temperature of high heat flux surfaces. The transpiration coolant flowed through the permeable porous wall and then formed a film layer covered on the surface to reduce the heat transfer from the hot mainstream. Using this technology, cold fuel is sent through the porous walls of the combustion chamber in order to cool them. Thus, the permeable wall configuration and characteristics are very important to ensure efficient thermal protection. Nowadays, Advanced design by additive manufacturing of porous walls is more than necessary in order to control multiphysical phenomena during the cooling process.

In this respect, the objective of this topic consists of the evaluation of the cooling efficiency for an additive manufactured porous plate. The mechanism of the transpiration flow through the additive manufactured porous plates will be analysed using 3D numerical modelling (OpenFOAM CFD code). The computational domain consists on a plate channel through flowing hot combustion gas. At the bottom wall of this physical domain, mesostructured porous wall equipped by solid partition is considered. The investigations concern the effects of the pore and solid partition arrangement. Cold fuel conditions are also explored to determine the more efficient cooling film for the thermal protection performances. The obtained results are of practical importance for the design of combustion chambers.

She/He should be able to work independently by taking into account suggestion of the team in which she/he will be integrated. Specific knowledge related to fluid mechanics, CFD, combustion and fire are expected.

Start Time: 2025.

Other advantages: Challenging environment, enthusiastic co-workers, work time flexibility, autonomy, friendly atmosphere with co-workers from all over the world…, professional travels and training.