Validation of tools to accelerate high-speed CFD simulations using OpenFOAM

Daniel Espinoza; Thomas Scanlon; Richard Brown

doi:10.2514/6.2015-3566

Validation of tools to accelerate high-speed CFD simulations using OpenFOAM

Daniel Espinoza, Thomas Scanlon, Richard Brown

Mechanical And Aerospace Engineering

Research output: Contribution to conference › Paper › peer-review

9 Citations (Scopus)

732 Downloads (Pure)

Abstract

Local time stepping (LTS) and adaptive mesh refinement (AMR) have been implemented into rhoCentralFoam, a compressible solver within the open source computational fluid dynamics (CFD) code OpenFOAM. The LTS solver has been validated using a compressible Couette channel with heat transfer and a supersonic at plate. An excellent concurrence is found for these cases in comparison with the solutions with the obtained results being, respectively, 2.56 and 8.96 times faster compared to the unmodified solver. The AMR solver was employed to simulate hypersonic flow over a 30° wedge, and the Sod shock tube test case, and has also achieved satisfactory agreement with the analytical solutions. These results highlight the potentially significant computational cost savings that may be achieved when solving high-speed, compressible flows using this approach.

Original language	English
Number of pages	18
DOIs	https://doi.org/10.2514/6.2015-3566
Publication status	Published - 6 Jul 2015
Event	20th International Space Planes and Hypersonic Systems and Technologies Conference, MHYP15 - Glasgow, United Kingdom Duration: 6 Jul 2015 → 9 Jul 2015

Conference

Conference	20th International Space Planes and Hypersonic Systems and Technologies Conference, MHYP15
Country/Territory	United Kingdom
City	Glasgow
Period	6/07/15 → 9/07/15

Keywords

CFD modelling
OpenFOAM
simulation tools

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Espinoza-etal-MHYP15-Validation-tools-to-accelerate-high-speed-CFD-simulations-using-OpenFOAMAccepted author manuscript, 1.52 MB

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title = "Validation of tools to accelerate high-speed CFD simulations using OpenFOAM",

abstract = "Local time stepping (LTS) and adaptive mesh refinement (AMR) have been implemented into rhoCentralFoam, a compressible solver within the open source computational fluid dynamics (CFD) code OpenFOAM. The LTS solver has been validated using a compressible Couette channel with heat transfer and a supersonic at plate. An excellent concurrence is found for these cases in comparison with the solutions with the obtained results being, respectively, 2.56 and 8.96 times faster compared to the unmodified solver. The AMR solver was employed to simulate hypersonic flow over a 30° wedge, and the Sod shock tube test case, and has also achieved satisfactory agreement with the analytical solutions. These results highlight the potentially significant computational cost savings that may be achieved when solving high-speed, compressible flows using this approach.",

keywords = "CFD modelling, OpenFOAM , simulation tools",

author = "Daniel Espinoza and Thomas Scanlon and Richard Brown",

year = "2015",

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doi = "10.2514/6.2015-3566",

language = "English",

note = "20th International Space Planes and Hypersonic Systems and Technologies Conference, MHYP15 ; Conference date: 06-07-2015 Through 09-07-2015",

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T1 - Validation of tools to accelerate high-speed CFD simulations using OpenFOAM

AU - Espinoza, Daniel

AU - Scanlon, Thomas

AU - Brown, Richard

PY - 2015/7/6

Y1 - 2015/7/6

N2 - Local time stepping (LTS) and adaptive mesh refinement (AMR) have been implemented into rhoCentralFoam, a compressible solver within the open source computational fluid dynamics (CFD) code OpenFOAM. The LTS solver has been validated using a compressible Couette channel with heat transfer and a supersonic at plate. An excellent concurrence is found for these cases in comparison with the solutions with the obtained results being, respectively, 2.56 and 8.96 times faster compared to the unmodified solver. The AMR solver was employed to simulate hypersonic flow over a 30° wedge, and the Sod shock tube test case, and has also achieved satisfactory agreement with the analytical solutions. These results highlight the potentially significant computational cost savings that may be achieved when solving high-speed, compressible flows using this approach.

AB - Local time stepping (LTS) and adaptive mesh refinement (AMR) have been implemented into rhoCentralFoam, a compressible solver within the open source computational fluid dynamics (CFD) code OpenFOAM. The LTS solver has been validated using a compressible Couette channel with heat transfer and a supersonic at plate. An excellent concurrence is found for these cases in comparison with the solutions with the obtained results being, respectively, 2.56 and 8.96 times faster compared to the unmodified solver. The AMR solver was employed to simulate hypersonic flow over a 30° wedge, and the Sod shock tube test case, and has also achieved satisfactory agreement with the analytical solutions. These results highlight the potentially significant computational cost savings that may be achieved when solving high-speed, compressible flows using this approach.

KW - CFD modelling

KW - OpenFOAM

KW - simulation tools

UR - https://arc.aiaa.org/doi/book/10.2514/MHYP15

U2 - 10.2514/6.2015-3566

DO - 10.2514/6.2015-3566

M3 - Paper

T2 - 20th International Space Planes and Hypersonic Systems and Technologies Conference, MHYP15

Y2 - 6 July 2015 through 9 July 2015

ER -

Validation of tools to accelerate high-speed CFD simulations using OpenFOAM

Abstract

Conference

Keywords

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