Numerical study of the switching mechanism of a jet valve using the meshless method
This study numerically investigates fluid dynamics of a jet flow at supersonic speed. The meshless method and the overlapping point cloud method are used to handle the moving boundary problems. The interaction between the jet flow and a moving ball-shaped plug is numerically solved, which has been r...
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2021-07-01
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Series: | Advances in Mechanical Engineering |
Online Access: | https://doi.org/10.1177/16878140211030066 |
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doaj-dc0072435c9b4de9865d18e1d65904932021-07-07T23:33:31ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402021-07-011310.1177/16878140211030066Numerical study of the switching mechanism of a jet valve using the meshless methodJun Zhang0Yuanding Wang1Junjie Tan2Guiping Zhu3Jing Liu4Key Laboratory of Unsteady Aerodynamics and Flow Control, Ministry of Industry and Information Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu, ChinaEngineering Research Center of Space Engine, Shanghai, ChinaSchool of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, ChinaKey Laboratory of Unsteady Aerodynamics and Flow Control, Ministry of Industry and Information Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu, ChinaEnergy Research Institute @ NTU, Nanyang Technological University, Singapore, SingaporeThis study numerically investigates fluid dynamics of a jet flow at supersonic speed. The meshless method and the overlapping point cloud method are used to handle the moving boundary problems. The interaction between the jet flow and a moving ball-shaped plug is numerically solved, which has been rarely done in the published literature. The switching mechanism of a novel designed jet valve in an attitude and orbit control system (AOCS) is analyzed. It is found out that applied pressure to the control inlets of the jet valve must be high enough in order to successfully drive the plug to move and subsequently change the force direction acting on the jet valve. Then the switching mechanism of AOCS can be triggered. The initial fluid condition also plays a vital role and it significantly influences the response time of the switch. This study explores the underlying physics of the jet flow on its deflection, wall attachment, and interaction with the ball-shaped plug. It contributes to the optimization design of the jet valve in the AOCS with a fast and efficient response.https://doi.org/10.1177/16878140211030066 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jun Zhang Yuanding Wang Junjie Tan Guiping Zhu Jing Liu |
spellingShingle |
Jun Zhang Yuanding Wang Junjie Tan Guiping Zhu Jing Liu Numerical study of the switching mechanism of a jet valve using the meshless method Advances in Mechanical Engineering |
author_facet |
Jun Zhang Yuanding Wang Junjie Tan Guiping Zhu Jing Liu |
author_sort |
Jun Zhang |
title |
Numerical study of the switching mechanism of a jet valve using the meshless method |
title_short |
Numerical study of the switching mechanism of a jet valve using the meshless method |
title_full |
Numerical study of the switching mechanism of a jet valve using the meshless method |
title_fullStr |
Numerical study of the switching mechanism of a jet valve using the meshless method |
title_full_unstemmed |
Numerical study of the switching mechanism of a jet valve using the meshless method |
title_sort |
numerical study of the switching mechanism of a jet valve using the meshless method |
publisher |
SAGE Publishing |
series |
Advances in Mechanical Engineering |
issn |
1687-8140 |
publishDate |
2021-07-01 |
description |
This study numerically investigates fluid dynamics of a jet flow at supersonic speed. The meshless method and the overlapping point cloud method are used to handle the moving boundary problems. The interaction between the jet flow and a moving ball-shaped plug is numerically solved, which has been rarely done in the published literature. The switching mechanism of a novel designed jet valve in an attitude and orbit control system (AOCS) is analyzed. It is found out that applied pressure to the control inlets of the jet valve must be high enough in order to successfully drive the plug to move and subsequently change the force direction acting on the jet valve. Then the switching mechanism of AOCS can be triggered. The initial fluid condition also plays a vital role and it significantly influences the response time of the switch. This study explores the underlying physics of the jet flow on its deflection, wall attachment, and interaction with the ball-shaped plug. It contributes to the optimization design of the jet valve in the AOCS with a fast and efficient response. |
url |
https://doi.org/10.1177/16878140211030066 |
work_keys_str_mv |
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