High-order techniques for multi-component turbulent non-equilibrium hypersonic flows

Alessandro Munafò, Konstantinos Vogiatzis, Debojyoti Ghosh, Prakash Vedula, Marco Panesi, Eswar Josyula

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


This work focuses on the development and application of high-order discretization techniques for multi-component turbulent non-equilibrium hypersonic flows. The governing equations (i.e., Navier-Stokes) are discretized in space using finite differences. High-order approximation of the inviscid flux derivatives are sought within the framework of Weighted Essentially Non-Oscillatory (WENO) schemes, with particular emphasis on minimization of dissipation and dispersion errors. Central finite differences are adopted to discretize the diffusive flux derivatives. Time-integration is performed via split/un-split Strong-Stability-Preserving schemes. The proposed numerical methods are implemented in an innovative high-performance tool, hypercode, described in a companion paper. Thermodynamic and transport properties, and source terms due to chemistry are evaluated using the plato library developed at University of Illinois. Applications consider two canonical problems: (i) Taylor-Green vortex and (ii) decay of compressible isotropic turbulence.

Original languageEnglish (US)
Title of host publicationAIAA Scitech 2020 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105951
StatePublished - 2020
EventAIAA Scitech Forum, 2020 - Orlando, United States
Duration: Jan 6 2020Jan 10 2020

Publication series

NameAIAA Scitech 2020 Forum
Volume1 PartF


ConferenceAIAA Scitech Forum, 2020
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Aerospace Engineering


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