Numerical simulation of suddenly expanded flow at Mach 2.2

A numerical simulation has been performed to investigate the control of base pressure with microjets in a suddenly expanded duct. Microjets placed at the pitch circle diameter (PCD) of 13 mm, two micro jets of 1 mm orifice diameter located at 900 for active control. The flow Mach number of the inves...

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Main Authors:	Aabid, Abdul, Khan, Ambareen, Mazlan, Nur Musfira, Ismail, Mohd Azmi, Akhtar, M. Nishat, Khan, Sher Afghan
Format:	Article
Language:	English English
Published:	Blue Eyes Intelligence Engineering & Sciences Publication 2019
Subjects:	TL500 Aeronautics
Online Access:	http://irep.iium.edu.my/71060/ http://irep.iium.edu.my/71060/ http://irep.iium.edu.my/71060/1/71060_Numerical%20simulation%20of%20suddenly%20expanded.pdf http://irep.iium.edu.my/71060/2/71060_Numerical%20simulation%20of%20suddenly%20expanded_SCOPUS.pdf

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recordtype	eprints
spelling	iium-710602019-07-12T07:43:01Z http://irep.iium.edu.my/71060/ Numerical simulation of suddenly expanded flow at Mach 2.2 Aabid, Abdul Khan, Ambareen Mazlan, Nur Musfira Ismail, Mohd Azmi Akhtar, M. Nishat Khan, Sher Afghan TL500 Aeronautics A numerical simulation has been performed to investigate the control of base pressure with microjets in a suddenly expanded duct. Microjets placed at the pitch circle diameter (PCD) of 13 mm, two micro jets of 1 mm orifice diameter located at 900 for active control. The flow Mach number of the investigation was M = 2.2, the L/D ratio of the enlarged duct considered is 6, and the area ratio is 3.24. The convergent-divergent (CD) nozzle geometry has been modeled and simulated employing K-ε turbulence model for standard wall function. From the code independently was checked with the commercial computational fluid dynamics software. The numerical simulations carried for nozzle pressure ratio’s (NPR) 3, 5, 7, 9 and 11. From the present numerical investigation, it is observed that the NPR, Mach number, and area ratio plays a vital role in fixing the base pressure values. NPR's of the present study is such that the flow mostly remained over expanded. Despite jets being over-expanded the control is effective in decreasing the base suction and hence the base drag. Blue Eyes Intelligence Engineering & Sciences Publication 2019-02 Article PeerReviewed application/pdf en http://irep.iium.edu.my/71060/1/71060_Numerical%20simulation%20of%20suddenly%20expanded.pdf application/pdf en http://irep.iium.edu.my/71060/2/71060_Numerical%20simulation%20of%20suddenly%20expanded_SCOPUS.pdf Aabid, Abdul and Khan, Ambareen and Mazlan, Nur Musfira and Ismail, Mohd Azmi and Akhtar, M. Nishat and Khan, Sher Afghan (2019) Numerical simulation of suddenly expanded flow at Mach 2.2. International journal of Engineering & Advanced Technology (IJEAT), 8 (3). pp. 457-462. ISSN 2249-8958 https://www.ijeat.org/wp-content/uploads/papers/v8i3/C5973028319.pdf
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	TL500 Aeronautics
spellingShingle	TL500 Aeronautics Aabid, Abdul Khan, Ambareen Mazlan, Nur Musfira Ismail, Mohd Azmi Akhtar, M. Nishat Khan, Sher Afghan Numerical simulation of suddenly expanded flow at Mach 2.2
description	A numerical simulation has been performed to investigate the control of base pressure with microjets in a suddenly expanded duct. Microjets placed at the pitch circle diameter (PCD) of 13 mm, two micro jets of 1 mm orifice diameter located at 900 for active control. The flow Mach number of the investigation was M = 2.2, the L/D ratio of the enlarged duct considered is 6, and the area ratio is 3.24. The convergent-divergent (CD) nozzle geometry has been modeled and simulated employing K-ε turbulence model for standard wall function. From the code independently was checked with the commercial computational fluid dynamics software. The numerical simulations carried for nozzle pressure ratio’s (NPR) 3, 5, 7, 9 and 11. From the present numerical investigation, it is observed that the NPR, Mach number, and area ratio plays a vital role in fixing the base pressure values. NPR's of the present study is such that the flow mostly remained over expanded. Despite jets being over-expanded the control is effective in decreasing the base suction and hence the base drag.
format	Article
author	Aabid, Abdul Khan, Ambareen Mazlan, Nur Musfira Ismail, Mohd Azmi Akhtar, M. Nishat Khan, Sher Afghan
author_facet	Aabid, Abdul Khan, Ambareen Mazlan, Nur Musfira Ismail, Mohd Azmi Akhtar, M. Nishat Khan, Sher Afghan
author_sort	Aabid, Abdul
title	Numerical simulation of suddenly expanded flow at Mach 2.2
title_short	Numerical simulation of suddenly expanded flow at Mach 2.2
title_full	Numerical simulation of suddenly expanded flow at Mach 2.2
title_fullStr	Numerical simulation of suddenly expanded flow at Mach 2.2
title_full_unstemmed	Numerical simulation of suddenly expanded flow at Mach 2.2
title_sort	numerical simulation of suddenly expanded flow at mach 2.2
publisher	Blue Eyes Intelligence Engineering & Sciences Publication
publishDate	2019
url	http://irep.iium.edu.my/71060/ http://irep.iium.edu.my/71060/ http://irep.iium.edu.my/71060/1/71060_Numerical%20simulation%20of%20suddenly%20expanded.pdf http://irep.iium.edu.my/71060/2/71060_Numerical%20simulation%20of%20suddenly%20expanded_SCOPUS.pdf
first_indexed	2023-09-18T21:40:51Z
last_indexed	2023-09-18T21:40:51Z
_version_	1777413129692512256

Numerical simulation of suddenly expanded flow at Mach 2.2

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