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PhD defense : Romain BIZZARI – “Aerodynamic and thermal modelling of effusion cooling in LES”

  Monday 5 November 2018 at 14h00

  Phd Thesis       Cerfacs, Toulouse France    

Abstract  

Numerical simulation is progressively taking importance in the design of an aeronautical engine. However, concerning the particular case of cooling devices, the high number of sub-millimetric cooling holes is an obstacle for computational simulations. A classical approach goes through the modelling of the effusion cooling by homogenisation. It allows to simulate a full combustor but fails in representing the jet penetration and mixing. A new approach named thickened-hole model was developed during this thesis to overcome this issue. A work on improving the mesh resolution on key areas thanks to an automatic adaptive method is also presented, leading to a clear breakthrough. In parallel, as the flame tube temperature is a cornerstone for the combustor durability, a low-cost approach is proposed to predict it. To meet the time-constraints of design, it is based on thermal modelling instead of a direct thermal resolution.

Jury

Françoise BATAILLE PROMES CNRS Perpignan Referee
Tony ARTS   VKI Bruxelles (Belgique)  Referee
Eva DORIGNAC Pprime Université de Poitiers        Member
Pascal BRUEL Univ. de Pau & des Pays de l’Adour  Member
Marianna BRAZA IMFT Toulouse    Member
Franck NICOUD IMAG Montpellier    Member
Stéphane RICHARD SAFRAN HE Bordes Invited member
Thierry POINSOT IMFT Toulouse  Advisor
Antoine DAUPTAIN CERFACS Toulouse Co Advisor

CALENDAR

Friday

24

May

2024

🎓 PhD Defense: Théo DEFONTAINE

Friday 24 May 2024From 10h00 at 13h00

  Phd Thesis       JCA room, Cerfacs, Toulouse, France    

Monday

27

May

2024

🎓 PhD Defense: Thibault GIOUD

Monday 27 May 2024From 14h00 at 18h00

  Phd Thesis       Cerfacs, Toulouse, France    

Thursday

30

May

2024

Young PhD day (JDD2024@Cerfacs) – 30/05/2024

Thursday 30 May 2024From 9h00 at 17h00

  Journée des Doctorants       CERFACS     

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