ISSN 2394-5125
 

Research Article 


Numerical Assessment of Noise Generated by Flow through Multi Hole Plate

Mahendra Babu K J, C J Gangadhara Gowda, Ranjith K.

Abstract
This paper addresses the acoustical behavior, specifically of air flow through a single and multi holed plates. Numerical investigations were performed to understand the noise produced by turbulent pipe flow through orifice plates containing single and multiple cylindrical holes. Number of holes used was 1, 4, 9, 16 and 25. EDR of 0.6 is maintained for the plates used for the test. Two step hybrid approaches consisting of LES and FW-H method has been used for flow and acoustic computation.From an acoustical view point, the multi holed plate’s behavior is identified to be different from that of a plate with single hole, even the total flow area for multi hole plate is maintained as that of flow area of single hole plate. For multi hole expansion as the number of hole increases, pressure power-spectral-density (PSD) decreases throughout the spectrum and hence decreases the onethird octave band sound-pressure level (SPL). For multiple hole plate the noise is reduced by 1- 3.5 dB with increase in number of holes.

Key words: EDR, FWH, LES, PSD, SPL


 
ARTICLE TOOLS
Abstract
PDF Fulltext
How to cite this articleHow to cite this article
Citation Tools
Related Records
 Articles by Mahendra Babu K J
Articles by C J Gangadhara Gowda
Articles by Ranjith K
on Google
on Google Scholar


How to Cite this Article
Pubmed Style

Mahendra Babu K J, C J Gangadhara Gowda, Ranjith K. Numerical Assessment of Noise Generated by Flow through Multi Hole Plate . JCR. 2020; 7(17): 1589-1594. doi:10.31838/jcr.07.17.201


Web Style

Mahendra Babu K J, C J Gangadhara Gowda, Ranjith K. Numerical Assessment of Noise Generated by Flow through Multi Hole Plate . http://www.jcreview.com/?mno=15833 [Access: August 17, 2021]. doi:10.31838/jcr.07.17.201


AMA (American Medical Association) Style

Mahendra Babu K J, C J Gangadhara Gowda, Ranjith K. Numerical Assessment of Noise Generated by Flow through Multi Hole Plate . JCR. 2020; 7(17): 1589-1594. doi:10.31838/jcr.07.17.201



Vancouver/ICMJE Style

Mahendra Babu K J, C J Gangadhara Gowda, Ranjith K. Numerical Assessment of Noise Generated by Flow through Multi Hole Plate . JCR. (2020), [cited August 17, 2021]; 7(17): 1589-1594. doi:10.31838/jcr.07.17.201



Harvard Style

Mahendra Babu K J, C J Gangadhara Gowda, Ranjith K (2020) Numerical Assessment of Noise Generated by Flow through Multi Hole Plate . JCR, 7 (17), 1589-1594. doi:10.31838/jcr.07.17.201



Turabian Style

Mahendra Babu K J, C J Gangadhara Gowda, Ranjith K. 2020. Numerical Assessment of Noise Generated by Flow through Multi Hole Plate . Journal of Critical Reviews, 7 (17), 1589-1594. doi:10.31838/jcr.07.17.201



Chicago Style

Mahendra Babu K J, C J Gangadhara Gowda, Ranjith K. "Numerical Assessment of Noise Generated by Flow through Multi Hole Plate ." Journal of Critical Reviews 7 (2020), 1589-1594. doi:10.31838/jcr.07.17.201



MLA (The Modern Language Association) Style

Mahendra Babu K J, C J Gangadhara Gowda, Ranjith K. "Numerical Assessment of Noise Generated by Flow through Multi Hole Plate ." Journal of Critical Reviews 7.17 (2020), 1589-1594. Print. doi:10.31838/jcr.07.17.201



APA (American Psychological Association) Style

Mahendra Babu K J, C J Gangadhara Gowda, Ranjith K (2020) Numerical Assessment of Noise Generated by Flow through Multi Hole Plate . Journal of Critical Reviews, 7 (17), 1589-1594. doi:10.31838/jcr.07.17.201