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Effect of streamwise spacing on the sound generated by flow through two square cylinders in tandem arrangement

The sound generated by the flow past two square cylinder in tandem arrangements was investigated by direct solution of two dimensiona1, unsteady, compressible Navier-Stokes equation. The main objective of the investigation is to study the effect of the spacing between two square cylinders on the gen...

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Main Authors:	Manshoor, Bukhari, Zaman, Izzuddin, Khalid, Amir, Ghazali, M.F., Khandelwal, Manish K.
Format:	Article
Language:	English
Published:	WARSE 2020
Subjects:	T Technology (General) TJ210.2-211.47 Mechanical devices and figures. Automata. Ingenious mechanisms. Robots (General)
Online Access:	http://eprints.uthm.edu.my/6313/1/AJ%202020%20%28273%29.pdf http://eprints.uthm.edu.my/6313/ https://doi.org/10.30534/ijatcse/2020/8791.12020
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spelling	my.uthm.eprints.63132022-01-30T02:28:44Z http://eprints.uthm.edu.my/6313/ Effect of streamwise spacing on the sound generated by flow through two square cylinders in tandem arrangement Manshoor, Bukhari Zaman, Izzuddin Khalid, Amir Ghazali, M.F. Khandelwal, Manish K. T Technology (General) TJ210.2-211.47 Mechanical devices and figures. Automata. Ingenious mechanisms. Robots (General) The sound generated by the flow past two square cylinder in tandem arrangements was investigated by direct solution of two dimensiona1, unsteady, compressible Navier-Stokes equation. The main objective of the investigation is to study the effect of the spacing between two square cylinders on the generation and propagation mechanism of the sound. Since the sound pressure is very small compared to normal pressure and other parameters, high order computational scheme was use to captured the pressure fluctuations. Besides that, filtering is em-ployed to eliminate the high frequency part caused by nonlinearity of the governing equations. 4th order Runge-Kutta method was employed for time marching and for the boundary condition, adiabatic and non-slip conditions are imposed on the surface of the square cylinders. Present results for near-field flow features are in good agreement with the experimental results by previous researchers though the Reynolds number ranges examined are different. From the results, it shows that tandem arrangement of two cylinders with a small spacing may be useful for a passive control to reduce the generated sound since the larger spacing (L/D > 4), the shear layer separated from the upstream cylinder rolls up and forms vortices in front of the downstream cylinder. The results also showed that body-vortex interaction enhances the amplitude of the generated sound significantly. WARSE 2020 Article PeerReviewed text en http://eprints.uthm.edu.my/6313/1/AJ%202020%20%28273%29.pdf Manshoor, Bukhari and Zaman, Izzuddin and Khalid, Amir and Ghazali, M.F. and Khandelwal, Manish K. (2020) Effect of streamwise spacing on the sound generated by flow through two square cylinders in tandem arrangement. International Journal of Advanced Trends in Computer Science and Engineering, 9 (1.1). pp. 534-541. ISSN 2278-3091 https://doi.org/10.30534/ijatcse/2020/8791.12020
institution	Universiti Tun Hussein Onn Malaysia
building	UTHM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Tun Hussein Onn Malaysia
content_source	UTHM Institutional Repository
url_provider	http://eprints.uthm.edu.my/
language	English
topic	T Technology (General) TJ210.2-211.47 Mechanical devices and figures. Automata. Ingenious mechanisms. Robots (General)
spellingShingle	T Technology (General) TJ210.2-211.47 Mechanical devices and figures. Automata. Ingenious mechanisms. Robots (General) Manshoor, Bukhari Zaman, Izzuddin Khalid, Amir Ghazali, M.F. Khandelwal, Manish K. Effect of streamwise spacing on the sound generated by flow through two square cylinders in tandem arrangement
description	The sound generated by the flow past two square cylinder in tandem arrangements was investigated by direct solution of two dimensiona1, unsteady, compressible Navier-Stokes equation. The main objective of the investigation is to study the effect of the spacing between two square cylinders on the generation and propagation mechanism of the sound. Since the sound pressure is very small compared to normal pressure and other parameters, high order computational scheme was use to captured the pressure fluctuations. Besides that, filtering is em-ployed to eliminate the high frequency part caused by nonlinearity of the governing equations. 4th order Runge-Kutta method was employed for time marching and for the boundary condition, adiabatic and non-slip conditions are imposed on the surface of the square cylinders. Present results for near-field flow features are in good agreement with the experimental results by previous researchers though the Reynolds number ranges examined are different. From the results, it shows that tandem arrangement of two cylinders with a small spacing may be useful for a passive control to reduce the generated sound since the larger spacing (L/D > 4), the shear layer separated from the upstream cylinder rolls up and forms vortices in front of the downstream cylinder. The results also showed that body-vortex interaction enhances the amplitude of the generated sound significantly.
format	Article
author	Manshoor, Bukhari Zaman, Izzuddin Khalid, Amir Ghazali, M.F. Khandelwal, Manish K.
author_facet	Manshoor, Bukhari Zaman, Izzuddin Khalid, Amir Ghazali, M.F. Khandelwal, Manish K.
author_sort	Manshoor, Bukhari
title	Effect of streamwise spacing on the sound generated by flow through two square cylinders in tandem arrangement
title_short	Effect of streamwise spacing on the sound generated by flow through two square cylinders in tandem arrangement
title_full	Effect of streamwise spacing on the sound generated by flow through two square cylinders in tandem arrangement
title_fullStr	Effect of streamwise spacing on the sound generated by flow through two square cylinders in tandem arrangement
title_full_unstemmed	Effect of streamwise spacing on the sound generated by flow through two square cylinders in tandem arrangement
title_sort	effect of streamwise spacing on the sound generated by flow through two square cylinders in tandem arrangement
publisher	WARSE
publishDate	2020
url	http://eprints.uthm.edu.my/6313/1/AJ%202020%20%28273%29.pdf http://eprints.uthm.edu.my/6313/ https://doi.org/10.30534/ijatcse/2020/8791.12020
_version_	1738581476487725056
score	13.211869

Effect of streamwise spacing on the sound generated by flow through two square cylinders in tandem arrangement

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