Detailed comparison of diffusive transport phenomena between CFD and DSMC on a two-dimensional cylinder

Chiara Amato; Michael Kroells; Thomas E. Schwartzentruber; Graham V. Candler

doi:10.2514/6.2021-0317

Detailed comparison of diffusive transport phenomena between CFD and DSMC on a two-dimensional cylinder

Chiara Amato, Michael Kroells, Thomas E. Schwartzentruber, Graham V. Candler

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The present paper aims to analyze the effects of the diffusion transport properties and chemical kinetics on two-dimensional hypersonic flow in the near-continuum regime. We simulate a five species air mixture with different free stream conditions using both US3D, a code routinely used for complex hypersonic computational fluid dynamics (CFD) simulations, and MGDS, a code capable of large-scale 3D Direct simulation Monte Carlo (DSMC) calculations. We study the effect of the reactions through the comparison between the Park model, the Modified Marrone-Treanor chemical kinetics model, available in US3D, and the total collision energy model, available in MGDS. We observed intriguing discrepancies in the near-wall region. Therefore, we quantify the diffusive transport terms and identify the leading diffusive phenomena. Furthermore, we implemented the transport properties derived from the Chapman-Enskog method for a multi-component mixture and repeated the same test case. All the CFD simulations neglect the thermal diffusion term, which we have found are not negligible at these conditions.

Original language	English (US)
Title of host publication	AIAA Scitech 2021 Forum
Publisher	American Institute of Aeronautics and Astronautics Inc, AIAA
Pages	1-15
Number of pages	15
ISBN (Print)	9781624106095
DOIs	https://doi.org/10.2514/6.2021-0317
State	Published - 2021
Externally published	Yes
Event	AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021 - Virtual, Online Duration: Jan 11 2021 → Jan 15 2021

Publication series

Name	AIAA Scitech 2021 Forum

Conference

Conference	AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021
City	Virtual, Online
Period	1/11/21 → 1/15/21

Bibliographical note

Funding Information:
This research was supported by the Air Force Office of Scientific Research (AFOSR) under grant numbers FA9550-17-1-0250 and FA9550-19-1-0219. The view and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of the AFOSR or the US government.

Publisher Copyright:
© 2021, American Institute of Aeronautics and Astronautics Inc, AIAA. All Rights Reserved.

Access

10.2514/6.2021-0317

OpenUrl availability

Full text

Cite this

Detailed comparison of diffusive transport phenomena between CFD and DSMC on a two-dimensional cylinder. / Amato, Chiara; Kroells, Michael; Schwartzentruber, Thomas E. et al.
AIAA Scitech 2021 Forum. American Institute of Aeronautics and Astronautics Inc, AIAA, 2021. p. 1-15 (AIAA Scitech 2021 Forum).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Amato, C, Kroells, M, Schwartzentruber, TE & Candler, GV 2021, Detailed comparison of diffusive transport phenomena between CFD and DSMC on a two-dimensional cylinder. in AIAA Scitech 2021 Forum. AIAA Scitech 2021 Forum, American Institute of Aeronautics and Astronautics Inc, AIAA, pp. 1-15, AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021, Virtual, Online, 1/11/21. https://doi.org/10.2514/6.2021-0317

@inproceedings{95802c8a40cd49d4b9f7c64fb6284f41,

title = "Detailed comparison of diffusive transport phenomena between CFD and DSMC on a two-dimensional cylinder",

abstract = "The present paper aims to analyze the effects of the diffusion transport properties and chemical kinetics on two-dimensional hypersonic flow in the near-continuum regime. We simulate a five species air mixture with different free stream conditions using both US3D, a code routinely used for complex hypersonic computational fluid dynamics (CFD) simulations, and MGDS, a code capable of large-scale 3D Direct simulation Monte Carlo (DSMC) calculations. We study the effect of the reactions through the comparison between the Park model, the Modified Marrone-Treanor chemical kinetics model, available in US3D, and the total collision energy model, available in MGDS. We observed intriguing discrepancies in the near-wall region. Therefore, we quantify the diffusive transport terms and identify the leading diffusive phenomena. Furthermore, we implemented the transport properties derived from the Chapman-Enskog method for a multi-component mixture and repeated the same test case. All the CFD simulations neglect the thermal diffusion term, which we have found are not negligible at these conditions.",

author = "Chiara Amato and Michael Kroells and Schwartzentruber, {Thomas E.} and Candler, {Graham V.}",

note = "Funding Information: This research was supported by the Air Force Office of Scientific Research (AFOSR) under grant numbers FA9550-17-1-0250 and FA9550-19-1-0219. The view and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of the AFOSR or the US government. Publisher Copyright: {\textcopyright} 2021, American Institute of Aeronautics and Astronautics Inc, AIAA. All Rights Reserved.; AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021 ; Conference date: 11-01-2021 Through 15-01-2021",

year = "2021",

doi = "10.2514/6.2021-0317",

language = "English (US)",

isbn = "9781624106095",

series = "AIAA Scitech 2021 Forum",

publisher = "American Institute of Aeronautics and Astronautics Inc, AIAA",

pages = "1--15",

booktitle = "AIAA Scitech 2021 Forum",

}

TY - GEN

T1 - Detailed comparison of diffusive transport phenomena between CFD and DSMC on a two-dimensional cylinder

AU - Amato, Chiara

AU - Kroells, Michael

AU - Schwartzentruber, Thomas E.

AU - Candler, Graham V.

N1 - Funding Information: This research was supported by the Air Force Office of Scientific Research (AFOSR) under grant numbers FA9550-17-1-0250 and FA9550-19-1-0219. The view and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of the AFOSR or the US government. Publisher Copyright: © 2021, American Institute of Aeronautics and Astronautics Inc, AIAA. All Rights Reserved.

PY - 2021

Y1 - 2021

N2 - The present paper aims to analyze the effects of the diffusion transport properties and chemical kinetics on two-dimensional hypersonic flow in the near-continuum regime. We simulate a five species air mixture with different free stream conditions using both US3D, a code routinely used for complex hypersonic computational fluid dynamics (CFD) simulations, and MGDS, a code capable of large-scale 3D Direct simulation Monte Carlo (DSMC) calculations. We study the effect of the reactions through the comparison between the Park model, the Modified Marrone-Treanor chemical kinetics model, available in US3D, and the total collision energy model, available in MGDS. We observed intriguing discrepancies in the near-wall region. Therefore, we quantify the diffusive transport terms and identify the leading diffusive phenomena. Furthermore, we implemented the transport properties derived from the Chapman-Enskog method for a multi-component mixture and repeated the same test case. All the CFD simulations neglect the thermal diffusion term, which we have found are not negligible at these conditions.

AB - The present paper aims to analyze the effects of the diffusion transport properties and chemical kinetics on two-dimensional hypersonic flow in the near-continuum regime. We simulate a five species air mixture with different free stream conditions using both US3D, a code routinely used for complex hypersonic computational fluid dynamics (CFD) simulations, and MGDS, a code capable of large-scale 3D Direct simulation Monte Carlo (DSMC) calculations. We study the effect of the reactions through the comparison between the Park model, the Modified Marrone-Treanor chemical kinetics model, available in US3D, and the total collision energy model, available in MGDS. We observed intriguing discrepancies in the near-wall region. Therefore, we quantify the diffusive transport terms and identify the leading diffusive phenomena. Furthermore, we implemented the transport properties derived from the Chapman-Enskog method for a multi-component mixture and repeated the same test case. All the CFD simulations neglect the thermal diffusion term, which we have found are not negligible at these conditions.

UR - http://www.scopus.com/inward/record.url?scp=85100320395&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85100320395&partnerID=8YFLogxK

U2 - 10.2514/6.2021-0317

DO - 10.2514/6.2021-0317

M3 - Conference contribution

AN - SCOPUS:85100320395

SN - 9781624106095

T3 - AIAA Scitech 2021 Forum

SP - 1

EP - 15

BT - AIAA Scitech 2021 Forum

PB - American Institute of Aeronautics and Astronautics Inc, AIAA

T2 - AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021

Y2 - 11 January 2021 through 15 January 2021

ER -

Detailed comparison of diffusive transport phenomena between CFD and DSMC on a two-dimensional cylinder

Abstract

Publication series

Conference

Bibliographical note

Access

OpenUrl availability

Other files and links

Fingerprint

Cite this