CFD analysis of CD nozzle and effect of nozzle pressure ratio on pressure and velocity for suddenly expanded flows

A numerical work was carried out to study the effectiveness of micro-jets to control base pressure in suddenly expanded two-dimensional planar duct. Two micro-jets of 1 mm orifice diameter located at 90° intervals along a pitch circle distance of 1.5 times the nozzle exit diameter in the base region...

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Main Authors:	Khan, Sher Afghan, Abid, Abdul, Baig, Maugal Ahmed Ali
Format:	Article
Language:	English English
Published:	Trans Stellar 2018
Subjects:	TL Motor vehicles. Aeronautics. Astronautics TL780 Rockets
Online Access:	http://irep.iium.edu.my/64394/ http://irep.iium.edu.my/64394/ http://irep.iium.edu.my/64394/ http://irep.iium.edu.my/64394/1/CFD-2-67-1529468467-119.IJMPERDJUN2018119.pdf http://irep.iium.edu.my/64394/7/64394_CFD%20analysis%20of%20cd%20nozzle%20and%20effect%20of%20nozzle%20pressure%20ratio_SCOPUS.pdf

id	iium-64394
recordtype	eprints
spelling	iium-643942018-09-13T08:03:26Z http://irep.iium.edu.my/64394/ CFD analysis of CD nozzle and effect of nozzle pressure ratio on pressure and velocity for suddenly expanded flows Khan, Sher Afghan Abid, Abdul Baig, Maugal Ahmed Ali TL Motor vehicles. Aeronautics. Astronautics TL780 Rockets A numerical work was carried out to study the effectiveness of micro-jets to control base pressure in suddenly expanded two-dimensional planar duct. Two micro-jets of 1 mm orifice diameter located at 90° intervals along a pitch circle distance of 1.5 times the nozzle exit diameter in the base region were employed as active controls. The calibrated Mach numbers at the entry to suddenly expanded duct was 1.87. The length-to-diameter ratio (L/D) of suddenly expanded duct was 10. Nozzles generating the calibrated Mach numbers were operated with nozzle pressure ratio (NPR) 3, 5, 7, 9 and 11. From the present investigation it is evident that for a given Mach number and effect of NPR will result in maximum increase/decrease of pressure and velocity. The convergent-divergent nozzle geometry has been modeled and simulated employing turbulence models: K-ε standard wall function turbulence model from the code was independently checked with the commercial computational fluid dynamics. Trans Stellar 2018-06 Article PeerReviewed application/pdf en http://irep.iium.edu.my/64394/1/CFD-2-67-1529468467-119.IJMPERDJUN2018119.pdf application/pdf en http://irep.iium.edu.my/64394/7/64394_CFD%20analysis%20of%20cd%20nozzle%20and%20effect%20of%20nozzle%20pressure%20ratio_SCOPUS.pdf Khan, Sher Afghan and Abid, Abdul and Baig, Maugal Ahmed Ali (2018) CFD analysis of CD nozzle and effect of nozzle pressure ratio on pressure and velocity for suddenly expanded flows. International Journal of Mechanical and Production Engineering Research and Development (IJMPERD), 8 (3). pp. 1147-1157. ISSN 2249-6890 E-ISSN 2249-8001 http://www.tjprc.org/publishpapers/2-67-1529468467-119.IJMPERDJUN2018119.pdf 10.24247/ijmperdjun2018119
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	TL Motor vehicles. Aeronautics. Astronautics TL780 Rockets
spellingShingle	TL Motor vehicles. Aeronautics. Astronautics TL780 Rockets Khan, Sher Afghan Abid, Abdul Baig, Maugal Ahmed Ali CFD analysis of CD nozzle and effect of nozzle pressure ratio on pressure and velocity for suddenly expanded flows
description	A numerical work was carried out to study the effectiveness of micro-jets to control base pressure in suddenly expanded two-dimensional planar duct. Two micro-jets of 1 mm orifice diameter located at 90° intervals along a pitch circle distance of 1.5 times the nozzle exit diameter in the base region were employed as active controls. The calibrated Mach numbers at the entry to suddenly expanded duct was 1.87. The length-to-diameter ratio (L/D) of suddenly expanded duct was 10. Nozzles generating the calibrated Mach numbers were operated with nozzle pressure ratio (NPR) 3, 5, 7, 9 and 11. From the present investigation it is evident that for a given Mach number and effect of NPR will result in maximum increase/decrease of pressure and velocity. The convergent-divergent nozzle geometry has been modeled and simulated employing turbulence models: K-ε standard wall function turbulence model from the code was independently checked with the commercial computational fluid dynamics.
format	Article
author	Khan, Sher Afghan Abid, Abdul Baig, Maugal Ahmed Ali
author_facet	Khan, Sher Afghan Abid, Abdul Baig, Maugal Ahmed Ali
author_sort	Khan, Sher Afghan
title	CFD analysis of CD nozzle and effect of nozzle pressure ratio on pressure and velocity for suddenly expanded flows
title_short	CFD analysis of CD nozzle and effect of nozzle pressure ratio on pressure and velocity for suddenly expanded flows
title_full	CFD analysis of CD nozzle and effect of nozzle pressure ratio on pressure and velocity for suddenly expanded flows
title_fullStr	CFD analysis of CD nozzle and effect of nozzle pressure ratio on pressure and velocity for suddenly expanded flows
title_full_unstemmed	CFD analysis of CD nozzle and effect of nozzle pressure ratio on pressure and velocity for suddenly expanded flows
title_sort	cfd analysis of cd nozzle and effect of nozzle pressure ratio on pressure and velocity for suddenly expanded flows
publisher	Trans Stellar
publishDate	2018
url	http://irep.iium.edu.my/64394/ http://irep.iium.edu.my/64394/ http://irep.iium.edu.my/64394/ http://irep.iium.edu.my/64394/1/CFD-2-67-1529468467-119.IJMPERDJUN2018119.pdf http://irep.iium.edu.my/64394/7/64394_CFD%20analysis%20of%20cd%20nozzle%20and%20effect%20of%20nozzle%20pressure%20ratio_SCOPUS.pdf
first_indexed	2023-09-18T21:31:25Z
last_indexed	2023-09-18T21:31:25Z
_version_	1777412535824154624

CFD analysis of CD nozzle and effect of nozzle pressure ratio on pressure and velocity for suddenly expanded flows

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