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

Abstract

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
DOIs
StatePublished - 2020
EventAIAA Scitech Forum, 2020 - Orlando, United States
Duration: Jan 6 2020Jan 10 2020

Publication series

NameAIAA Scitech 2020 Forum
Volume1 PartF

Conference

ConferenceAIAA Scitech Forum, 2020
CountryUnited States
CityOrlando
Period1/6/201/10/20

ASJC Scopus subject areas

  • Aerospace Engineering

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