Decoupled finite element approach for high-mach flows with finite-rate chemistry

Jory Seguin, Wagdi G. Habashi, Dario Isola, Guido S. Baruzzi, Marco Fossati, Luke A. Uribarri

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)


The high-energy conditions present in hypersonic flow fields can result in substantial thermal and chemical non-equilibrium effects. In particular, chemical reactions in the shock layer can significantly alter the gas composition and heat transfer to a wall. A decoupled implicit approach using an edge-based Finite Element methodology is proposed to compute steady-state flow for a gas mixture in chemical non-equilibrium. The chemical source term is validated using zero-dimensional adiabatic reactor-type simulations. The methodology is evaluated on an inviscid hypersonic air flow in thermo-chemical non-equilibrium past a 2D cylinder. Good agreement is found with reference solutions.
Original languageEnglish
Title of host publicationAIAA Aerospace Sciences Meeting
Place of PublicationReston, VA
Publication statusPublished - 7 Jan 2018
EventAIAA Aerospace Sciences Meeting, 2018 - Kissimmee, United States
Duration: 8 Jan 201812 Jan 2018


ConferenceAIAA Aerospace Sciences Meeting, 2018
Country/TerritoryUnited States


  • hypersonic flow
  • hypersonic civilian transport
  • fuel efficiency

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