SU2-NEMO: an open-source framework for high-mach nonequilibrium multi-species flows

Walter T. Maier, Jacob T. Needels, Catarina Garbacz, Fábio Morgado, Juan J. Alonso, Marco Fossati

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)
143 Downloads (Pure)


SU2-NEMO, a recent extension of the open-source SU2 multiphysics suite's set of physical models and code architecture, is presented with the aim of introducing its enhanced capabilities in addressing high-enthalpy and high-Mach number flows. This paper discusses the thermal nonequilibrium and finite-rate chemistry models adopted, including a link to the Mutation++ physio-chemical library. Further, the paper discusses how the software architecture has been designed to ensure modularity, incorporating the ability to introduce additional models in an efficient manner. A review of the numerical formulation and the discretization schemes utilized for the convective fluxes is also presented. Several test cases in two- and three-dimensions are examined for validation purposes and to illustrate the performance of the solver in addressing complex nonequilibrium flows
Original languageEnglish
Article number193
Number of pages29
Issue number7
Publication statusPublished - 16 Jul 2021


  • nonequilibrium flows
  • high-temperature effects
  • aerothermodynamics
  • hypersonic flight
  • computational fluid dynamics


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