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Fast Numerical Solutions of Gas-Particle Two-Phase Vacuum Plumes

Zhaoxin Ren Orcid Logo, Bing Wang, Huiqiang Zhang

Advances in Mechanical Engineering, Volume: 5, Start page: 765627

Swansea University Author: Zhaoxin Ren Orcid Logo

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DOI (Published version): 10.1155/2013/765627

Abstract

The free molecule point source and Simons models coupled to the particle Lagrangian trajectory model are employed, respectively, to establish the fast solving method for gas-particle two-phase vacuum plumes. Density, velocity and temperature distributions of gas phase, and velocity and temperature o...

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Published in: Advances in Mechanical Engineering
ISSN: 1687-8140 1687-8140
Published: SAGE Publications 2013
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URI: https://cronfa.swan.ac.uk/Record/cronfa59363
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spelling 2022-02-23T16:00:33.9736827 v2 59363 2022-02-11 Fast Numerical Solutions of Gas-Particle Two-Phase Vacuum Plumes 62a1a0da0fa78e05c3deafcdee5551ce 0000-0002-6305-9515 Zhaoxin Ren Zhaoxin Ren true false 2022-02-11 AERO The free molecule point source and Simons models coupled to the particle Lagrangian trajectory model are employed, respectively, to establish the fast solving method for gas-particle two-phase vacuum plumes. Density, velocity and temperature distributions of gas phase, and velocity and temperature of particles are solved to present the flow properties of two-phase plumes. The method based on free molecule point source model predicts the velocity and temperature distributions of vacuum plumes more reasonably and accurately than the Simons model. Comparisons of different drag coefficients show that Loth's drag formula can calculate exactly particle initial acceleration process for high Rer and Mr two-phase flows. The response characteristics of particles along their motion paths are further analyzed. Smaller particles can easily reach momentum equilibrium, while larger ones accelerate very difficultly. The thermal response is more relaxed than momentum response for different particle sizes. The present study is guidable to consider the effects of two-phase plumes on spacecraft in engineering. Journal Article Advances in Mechanical Engineering 5 765627 SAGE Publications 1687-8140 1687-8140 1 1 2013 2013-01-01 10.1155/2013/765627 COLLEGE NANME Aerospace Engineering COLLEGE CODE AERO Swansea University 2022-02-23T16:00:33.9736827 2022-02-11T01:10:00.8027957 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering Zhaoxin Ren 0000-0002-6305-9515 1 Bing Wang 2 Huiqiang Zhang 3 59363__22447__aa7195cc9f084a98b2991a6fa86da1fc.pdf 59363.pdf 2022-02-23T15:59:35.2272783 Output 1111284 application/pdf Version of Record true Copyright © 2013 ZhaoXin Ren et al. This is an open access article distributed under the Creative Commons Attribution License true eng http://creativecommons.org/licenses/by/3.0/
title Fast Numerical Solutions of Gas-Particle Two-Phase Vacuum Plumes
spellingShingle Fast Numerical Solutions of Gas-Particle Two-Phase Vacuum Plumes
Zhaoxin Ren
title_short Fast Numerical Solutions of Gas-Particle Two-Phase Vacuum Plumes
title_full Fast Numerical Solutions of Gas-Particle Two-Phase Vacuum Plumes
title_fullStr Fast Numerical Solutions of Gas-Particle Two-Phase Vacuum Plumes
title_full_unstemmed Fast Numerical Solutions of Gas-Particle Two-Phase Vacuum Plumes
title_sort Fast Numerical Solutions of Gas-Particle Two-Phase Vacuum Plumes
author_id_str_mv 62a1a0da0fa78e05c3deafcdee5551ce
author_id_fullname_str_mv 62a1a0da0fa78e05c3deafcdee5551ce_***_Zhaoxin Ren
author Zhaoxin Ren
author2 Zhaoxin Ren
Bing Wang
Huiqiang Zhang
format Journal article
container_title Advances in Mechanical Engineering
container_volume 5
container_start_page 765627
publishDate 2013
institution Swansea University
issn 1687-8140
1687-8140
doi_str_mv 10.1155/2013/765627
publisher SAGE Publications
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering
document_store_str 1
active_str 0
description The free molecule point source and Simons models coupled to the particle Lagrangian trajectory model are employed, respectively, to establish the fast solving method for gas-particle two-phase vacuum plumes. Density, velocity and temperature distributions of gas phase, and velocity and temperature of particles are solved to present the flow properties of two-phase plumes. The method based on free molecule point source model predicts the velocity and temperature distributions of vacuum plumes more reasonably and accurately than the Simons model. Comparisons of different drag coefficients show that Loth's drag formula can calculate exactly particle initial acceleration process for high Rer and Mr two-phase flows. The response characteristics of particles along their motion paths are further analyzed. Smaller particles can easily reach momentum equilibrium, while larger ones accelerate very difficultly. The thermal response is more relaxed than momentum response for different particle sizes. The present study is guidable to consider the effects of two-phase plumes on spacecraft in engineering.
published_date 2013-01-01T04:16:37Z
_version_ 1763754112118161408
score 11.035655

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