A Hybrid DSMC-Discontinuous Galerkin Finite Element Method for Rarefied Gas Flows

David A. Kessler, Andrew T. Corrigan, Timothy D. Holman

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review


We describe a novel domain decomposition method for flows with combined continuum-and rarefied regions. The Navier-Stokes equations used in the continuum regions are solved using a discontinuous Galerkin finite element method (DGFEM) that allows for high-order solutions on unstructured meshes in smooth regions of the flow. The Direct Simulation Monte Carlo (DSMC) method is used to solve the flow in the rarefied regions. We discuss the special coupling procedures needed at the DGFEM-DSMC interface.

Original languageEnglish
Title of host publication2018 AIAA Aerospace Sciences Meeting
Subtitle of host publicationSession: Noncontinuum and High-Speed Flows
Place of PublicationKissimmee, Florida
Number of pages1
StatePublished - 7 Jan 2018
EventAIAA Aerospace Sciences Meeting, 2018 - Kissimmee, United States
Duration: 8 Jan 201812 Jan 2018

Publication series

NameAIAA Aerospace Sciences Meeting, 2018


ConferenceAIAA Aerospace Sciences Meeting, 2018
Country/TerritoryUnited States

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering


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