Positivity-preserving space-time CE/SE scheme for high speed flows

Handle URI:
http://hdl.handle.net/10754/623203
Title:
Positivity-preserving space-time CE/SE scheme for high speed flows
Authors:
Shen, Hua; Parsani, Matteo ( 0000-0001-7300-1280 )
Abstract:
We develop a space-time conservation element and solution element (CE/SE) scheme using a simple slope limiter to preserve the positivity of the density and pressure in computations of inviscid and viscous high-speed flows. In general, the limiter works with all existing CE/SE schemes. Here, we test the limiter on a central Courant number insensitive (CNI) CE/SE scheme implemented on hybrid unstructured meshes. Numerical examples show that the proposed limiter preserves the positivity of the density and pressure without disrupting the conservation law; it also improves robustness without losing accuracy in solving high-speed flows.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Applied Mathematics and Computational Science Program; Extreme Computing Research Center
Citation:
Shen H, Parsani M (2017) Positivity-preserving space-time CE/SE scheme for high speed flows. 21st AIAA International Space Planes and Hypersonics Technologies Conference. Available: http://dx.doi.org/10.2514/6.2017-2278.
Publisher:
American Institute of Aeronautics and Astronautics (AIAA)
Journal:
21st AIAA International Space Planes and Hypersonics Technologies Conference
Issue Date:
2-Mar-2017
DOI:
10.2514/6.2017-2278
Type:
Conference Paper
Sponsors:
For computer time, this research used the resources of the Extreme Computing Research Center at King Abdullah University of Science & Technology (KAUST) in Thuwal, Saudi Arabia.
Additional Links:
http://arc.aiaa.org/doi/10.2514/6.2017-2278
Appears in Collections:
Conference Papers; Applied Mathematics and Computational Science Program; Extreme Computing Research Center; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorShen, Huaen
dc.contributor.authorParsani, Matteoen
dc.date.accessioned2017-04-13T11:51:01Z-
dc.date.available2017-04-13T11:51:01Z-
dc.date.issued2017-03-02en
dc.identifier.citationShen H, Parsani M (2017) Positivity-preserving space-time CE/SE scheme for high speed flows. 21st AIAA International Space Planes and Hypersonics Technologies Conference. Available: http://dx.doi.org/10.2514/6.2017-2278.en
dc.identifier.doi10.2514/6.2017-2278en
dc.identifier.urihttp://hdl.handle.net/10754/623203-
dc.description.abstractWe develop a space-time conservation element and solution element (CE/SE) scheme using a simple slope limiter to preserve the positivity of the density and pressure in computations of inviscid and viscous high-speed flows. In general, the limiter works with all existing CE/SE schemes. Here, we test the limiter on a central Courant number insensitive (CNI) CE/SE scheme implemented on hybrid unstructured meshes. Numerical examples show that the proposed limiter preserves the positivity of the density and pressure without disrupting the conservation law; it also improves robustness without losing accuracy in solving high-speed flows.en
dc.description.sponsorshipFor computer time, this research used the resources of the Extreme Computing Research Center at King Abdullah University of Science & Technology (KAUST) in Thuwal, Saudi Arabia.en
dc.publisherAmerican Institute of Aeronautics and Astronautics (AIAA)en
dc.relation.urlhttp://arc.aiaa.org/doi/10.2514/6.2017-2278en
dc.titlePositivity-preserving space-time CE/SE scheme for high speed flowsen
dc.typeConference Paperen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentApplied Mathematics and Computational Science Programen
dc.contributor.departmentExtreme Computing Research Centeren
dc.identifier.journal21st AIAA International Space Planes and Hypersonics Technologies Conferenceen
kaust.authorShen, Huaen
kaust.authorParsani, Matteoen
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