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General Information
    • ISSN: 1793-8198
    • Frequency: Quarterly
    • DOI: 10.18178/IJMMM
    • Editor-in-Chief: Prof. K. M. Gupta, Prof. Ian McAndrew
    • Executive Editor: Ms. Cherry L. Chen
    • Abstracting/Indexing: EI (INSPEC, IET), Chemical Abstracts Services (CAS), Engineering & Technology Digital Library,  ProQuest, Crossref, Ulrich's Periodicals Directory, DOAJ, and Electronic Journals Library .
    • E-mail ijmmm@ejournal.net
Editor-in-chief
Prof. Ian McAndrew
Embry Riddle Aeronautical University, UK.
It is my honor to be the editor-in-chief of IJMMM. I will do my best to help develop this journal better.

IJMMM 2013 Vol.1(2): 210-213 ISSN: 1793-8198
DOI: 10.7763/IJMMM.2013.V1.45

Acoustics of a Helmholtz Resonator Aligned Parallel with Flow: A Computational Study VS. Experiments

Emel Selamet, Ahmet Selamet, Asim Iqbal, and Hyunsu Kim
Abstract—Acoustic attenuation of a Helmholtz resonator (HR) placed parallel to the flow path is investigated computationally with and without mean flow and compared with experimental results. The time-dependent flow field is determined by solving three-dimensional unsteady, laminar/turbulent, compress-ible Navier-Stokes equations using Pressure-Implicit-Splitting- of-Operators algorithm of STAR-CD. Computations are performed by di erent finite difference schemes such as central and upwind for momentum equation. Predictions with central differencing, a blending (with upwind) factor 0.5, and fine mesh reveal results that are consistent with the experimental observations. The effect of flow on the acoustic attenuation characteristics of HR has been illustrated both computationally and experimentally. The predictions for transmission loss exhibit reduced attenuation at elevated flow rates.

Index Terms—Helmholtz resonator, flow effect on acoustics, transmission loss.

Emel Selamet, Ahmet Selamet, Asim Iqbal, and Hyunsu Kim are with the Center for Automotive Research, The Ohio State University, Columbus, OH, 43210, USA,(e-mail: Selamet.2@osu.edu; Selamet.1@osu.edu; iqbal.27@ osu.edu; kim.2287@osu.edu ).

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Cite:Emel Selamet, Ahmet Selamet, Asim Iqbal, and Hyunsu Kim, "Acoustics of a Helmholtz Resonator Aligned Parallel with Flow: A Computational Study VS. Experiments," International Journal of Materials, Mechanics and Manufacturing vol. 1, no. 2, pp. 210-213, 2013.

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