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HPC simulation hydrogen based energy

EU energy 2050 roadmap asking for “zero-net” CO2 emissions by 2050 calls for the decarbonation of energy in all energy production systems, with application in aeronautical propulsion, ground-based gas turbines for power generation, industrial furnaces and many other systems. A direct way to achieve this target is to increase the use of the so-called carbon neutral “e-fuels”, i.e., fuels produced in green-energy plants such as dihydrogen (H2), ammonia (NH3) or methane (from captured CO2 and H2).

Conjugate heat transfer simulations (AVBP/AVTP) of a gas turbine combustor operated with hydrogen

Such an extreme change in fuel supply may result in catastrophic consequences on the stability and performances of the combustion system leading to undesirable phenomena such as thermoacoustic instabilities, blow-off or flashback. On top of that, controlling pollutant emissions, and guaranteeing safety, in particular with the use of non-negligible amounts of H2, are mandatory.

The CFD team of CERFACS simulate all these systems ensuring a high level of experience in all the physics involved in these problems (turbulence, combustion, acoustics, atomization and phase change, heat transfer). CERFACS is the world leader for high performance computing of complex industrial systems under realistic conditions.

This is made possible by a set of in-house softwares:

  • ARCANE allows to analyze and reduce chemical schemes usable in LES of H2 and complex fuel combustion and pollutant predictions (NOx, CO and soot). ARCANE is developed in collaboration with Cornell University (Pr. Pepiot).
  • The LES solver AVBP features stable low dispersive and low dissipative numerical methods, with specific developments for the integration of stiff chemistry and high parallel efficiency, allowing in particular a local time-stepping strategy based on coupled subdomains.
  • Advanced coupling strategies of the AVBP code with thermal solvers AVTP (conduction) and PRISSMA (radiation) are available to address conductive / convective and radiative heat transfer in high-performance conjugate heat transfer simulations.

DNS of a high pressure H2-O2 diffusion flame

H2-based and clean energy is a major concern for many CERFACS Shareholders: Airbus, Safran and ONERA for aeronautical propulsion; EDF for production of electricity; Total for petrochemistry and conversion to renewable energy. It is also a major concern in many sectors, in particular ground-based gas turbines (Ansaldo), and all sectors using furnaces as a source of heat for the production of, for example, glass (Saint-Gobain), cements, chemical products, etc.



CMIP6 debriefing workshop – May 2021: a stocktaking and foresight exercise that highlighted the major and long-term investment of the CNRM-CERFACS group in the latest climate model intercomparison international exercise

CERFACS |  9 June 2021

The participation of the CNRM-CERFACS group in the international coupled global climate model intercomparison exercise CMIP6 was debriefed on 10 and 11 May. Since the mid-1990s, the various phases of the Coupled Model Intercomparison Project (CMIP), supported by the World Climate Research Programme (WCRP), have enabled climate science to make significant progress, feeding into the IPCC reports, supporting regional climate modelling activities and downstream climate services. On the balance sheet, the participation of CNRM-CERFACS in the extremely demanding CMIP6 exercise has resulted in a large-scale, high-quality contribution in terms of climate simulations, thanks in particular to the strong commitment of researchers and engineers, the quality of support services and national and international collaborations. The activities mainly took place over the period 2013-2020. Initially, the production environment ("workflow") was set up and the coupled climate models were assembled by capitalising on the development of components (atmosphere, ocean and continental surfaces) carried out over the long term. The actual production of simulations was spread over 2018-2020. During the debriefing, perspectives (scientific objectives, model development, organisation) were drawn up with a view to a new participation of CNRM and CERFACS in CMIPRead more

CERFACS Combustion paper on rocket engines selected as Distinguished Paper at the last Int. Symp. on Comb. in Adelaide

CERFACS |  14 April 2021

The paper of C. Laurent 'Heat-release dynamics in a doubly- transcritical LO2/LCH4 cryogenic coaxial jet flame subjected to fuel inflow acoustic modulation’  has been selected at the Distinguished Paper in the Gas Turbine and Rocket Engine Combustion colloquium for the 38th International Symposium on Combustion. This paper authored by Laurent, Staffelbach, Nicoud  and  T. Poinsot  is available here:  describes the first LES of a forced doubly transcritical flame.Read more