Two-Dimensional Numerical Study of the Transient Flow Conditions in Complete Shock Tunnel

In the current research, an axisymmetric model is developed to study high-speed unsteady flow in the test section of a 7 meter-long shock tunnel. The computational calculations of the shock tunnel are conducted using the Fluent CFD solver. The Finite Volume Method (FVM) is used to discretize the gov...

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Main Authors: Mohsen A.M., Yusoff M.Z., Sultan Aljibori H.S., Al-Falahi A., Kadhum A.A.H.
Other Authors: 55635108600
Format: Article
Published: Shahid Chamran University of Ahvaz 2023
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spelling my.uniten.dspace-263012023-05-29T17:08:52Z Two-Dimensional Numerical Study of the Transient Flow Conditions in Complete Shock Tunnel Mohsen A.M. Yusoff M.Z. Sultan Aljibori H.S. Al-Falahi A. Kadhum A.A.H. 55635108600 7003976733 30367577500 15750212500 35546574700 In the current research, an axisymmetric model is developed to study high-speed unsteady flow in the test section of a 7 meter-long shock tunnel. The computational calculations of the shock tunnel are conducted using the Fluent CFD solver. The Finite Volume Method (FVM) is used to discretize the governing equations of mass, momentum, and energy. The accuracy of the numerical model is investigated with first-order upwind, second-order upwind, and third-order MUSCL schemes. Adaptive mesh refinement is implemented to resolve the shock wave and contact surface regions accurately. The numerical results are compared with theoretical calculations and experimental data from experimental tests and the comparison shows good agreement.Different test gases of Helium, Air and CO2, are utilized in the current study. The results show that steady test conditions are maintained for a longer test time by adjusting the pressure ratio and gas combination across the diaphragm. The highest shock wave speed and strength are achieved for a gas combination of Helium-CO2, but a longer test duration is observed when using Air as the test gas. � 2021 Published by Shahid Chamran University of Ahvaz Final 2023-05-29T09:08:52Z 2023-05-29T09:08:52Z 2021 Article 10.22055/jacm.2021.35491.2665 2-s2.0-85103647723 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85103647723&doi=10.22055%2fjacm.2021.35491.2665&partnerID=40&md5=27557f2041bd3c398cb254beb88ef7d1 https://irepository.uniten.edu.my/handle/123456789/26301 7 2 956 964 Shahid Chamran University of Ahvaz Scopus
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description In the current research, an axisymmetric model is developed to study high-speed unsteady flow in the test section of a 7 meter-long shock tunnel. The computational calculations of the shock tunnel are conducted using the Fluent CFD solver. The Finite Volume Method (FVM) is used to discretize the governing equations of mass, momentum, and energy. The accuracy of the numerical model is investigated with first-order upwind, second-order upwind, and third-order MUSCL schemes. Adaptive mesh refinement is implemented to resolve the shock wave and contact surface regions accurately. The numerical results are compared with theoretical calculations and experimental data from experimental tests and the comparison shows good agreement.Different test gases of Helium, Air and CO2, are utilized in the current study. The results show that steady test conditions are maintained for a longer test time by adjusting the pressure ratio and gas combination across the diaphragm. The highest shock wave speed and strength are achieved for a gas combination of Helium-CO2, but a longer test duration is observed when using Air as the test gas. � 2021 Published by Shahid Chamran University of Ahvaz
author2 55635108600
author_facet 55635108600
Mohsen A.M.
Yusoff M.Z.
Sultan Aljibori H.S.
Al-Falahi A.
Kadhum A.A.H.
format Article
author Mohsen A.M.
Yusoff M.Z.
Sultan Aljibori H.S.
Al-Falahi A.
Kadhum A.A.H.
spellingShingle Mohsen A.M.
Yusoff M.Z.
Sultan Aljibori H.S.
Al-Falahi A.
Kadhum A.A.H.
Two-Dimensional Numerical Study of the Transient Flow Conditions in Complete Shock Tunnel
author_sort Mohsen A.M.
title Two-Dimensional Numerical Study of the Transient Flow Conditions in Complete Shock Tunnel
title_short Two-Dimensional Numerical Study of the Transient Flow Conditions in Complete Shock Tunnel
title_full Two-Dimensional Numerical Study of the Transient Flow Conditions in Complete Shock Tunnel
title_fullStr Two-Dimensional Numerical Study of the Transient Flow Conditions in Complete Shock Tunnel
title_full_unstemmed Two-Dimensional Numerical Study of the Transient Flow Conditions in Complete Shock Tunnel
title_sort two-dimensional numerical study of the transient flow conditions in complete shock tunnel
publisher Shahid Chamran University of Ahvaz
publishDate 2023
_version_ 1806424441780961280
score 13.214268