Cerfacs Enter the world of high performance ...

PhD Defense: ANTOINE MOUZE-MORNETTAS

  Tuesday 10 October 2023 at 14h00

  CNRS ICARE – Orléans - France       Organized by Nathalie BROUSSET    

“Modelling and reduction of the LOx-Methane chemical kinetics for rocket engine applications”

Link: Click here to join the meeting

Abstract :

As the space market becomes increasingly competitive, reusable launch vehicles are seen as a key technology to significantly reduce the cost of access to orbit. As it represents the best cost-performance compromise, methane is considered as a solution for future reusable engines. However, the operating conditions of rocket engines are extreme in terms of temperature and pressure, hence prohibitive for most existing experimental devices. Thus, there is a fundamental lack of knowledge about the kinetics of methane oxycombustion. 

To obtain a valid kinetic model, an experimental database of flame velocity  representative of the application conditions is built using the OPTIPRIME isochoric combustion chamber developed at ICARE (CNRS). A wide range of equivalence ratios, pressure and temperature never explored before for these mixtures is constructed. A selection of different recent mechanisms is then compared to the experimental results. The mechanism with the smallest deviation from experiment (POLIMI C1-C3) is used as a starting point for an optimization process on the experimental database using the OPTISMOKE++ tool. Hence, a kinetic model adapted to  CH4/O2 combustion under rocket engine conditions is obtained. Finally, the model is tested in a high-fidelity 3D LES simulation of a single-engine rocket configuration at 100 bar (REST HF-10) with the AVBP code developed at CERFACS. The obtained results are compared to existing models. The main characteristics of the flame are recovered but with a more complex structure, thus underlining the interest of an optimized chemistry.

Jury :

Frédérique BATTIN-LECLERCCNRS LRGP, Université de LorraineReferee
 Guillaume RIBERT  CNRS CORIA, INSA Rouen NormandieReferee
 Aurélie NICOLE ONERA, PalaiseauJury member
 Annafederica URBANO ISAE SUPAERO, ToulouseJury member
 Guillaume DAYMA CNRS ICARE, Université d’OrléansJury member
 Florian MONNIER ArianeGroup, Site de VernonInvited member
 Miguel MARTIN-BENITO CNES, Paris DaumesnilInvited member, Industrial advisor
Fabien HALTERCNRS ICARE, Université d’OrléansAdvisor
Bénédicte CUENOTCERFACS, ToulouseAdvisor

CALENDAR

Monday

17

June

2024

Sparse Days Meeting 2024

From Monday 17 June 2024 to Tuesday 18 June 2024

  Cerfacs, Toulouse, France    

Monday

17

June

2024

🎓 PhD Defense: Thibault DURANTON

Monday 17 June 2024From 14h00 at 18h00

  Phd Thesis       Cerfacs, Seminar room, Toulouse, France    

Tuesday

18

June

2024

🎓 PhD Defense: Nicola DETOMASO

Tuesday 18 June 2024From 14h00 at 18h00

  Phd Thesis       Cerfacs, JCA room, Toulouse, France    

ALL EVENTS