This paper reports on the experimental investigation of the flow inside a low aspect ratio (length less than the reattachment length of separated flow) dump combustor with a tapered exit. The flow field in the combustor is evaluated using wall pressure and velocity measurements at varying flow Reynolds numbers. The mean velocity and turbulence variation closer to the wall of the combustor was found to be different from that at other radial locations due to the presence of recirculation and possible thickening of the shear layer caused by a decrease in the strength of the potential core. The power spectral study of the wall pressure and velocity fluctuations suggested the dominant presence of acoustic perturbations with amplitude modulation of such perturbations due to viscous dissipation in the shear layer.
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January 2013
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Identification of the Cold Flow Perturbation Sources in a Dump Combustor With a Tapered Exit Available to Purchase
N. P. Yadav,
N. P. Yadav
Department of Mechanical Engineering,
e-mail: [email protected]
Bundelkhand Institute of Engineering and Technology
,Jhansi, Utter Pradesh
, 284128, India
e-mail: [email protected]
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Abhijit Kushari
Abhijit Kushari
Department of Aerospace Engineering,
e-mail: [email protected]
Indian Institute of Technology
, Kanpur
,Utter Pradesh
, 208016, India
e-mail: [email protected]
Search for other works by this author on:
N. P. Yadav
Department of Mechanical Engineering,
e-mail: [email protected]
Bundelkhand Institute of Engineering and Technology
,Jhansi, Utter Pradesh
, 284128, India
e-mail: [email protected]
Abhijit Kushari
Department of Aerospace Engineering,
e-mail: [email protected]
Indian Institute of Technology
, Kanpur
,Utter Pradesh
, 208016, India
e-mail: [email protected]
Manuscript received April 27, 2012; final manuscript received December 18, 2012; published online January 18, 2013. Assoc. Editor: John Abraham.
J. Fluids Eng. Jan 2013, 135(1): 014502 (5 pages)
Published Online: January 18, 2013
Article history
Received:
April 27, 2012
Revision Received:
December 18, 2012
Citation
Yadav, N. P., and Kushari, A. (January 18, 2013). "Identification of the Cold Flow Perturbation Sources in a Dump Combustor With a Tapered Exit." ASME. J. Fluids Eng. January 2013; 135(1): 014502. https://doi.org/10.1115/1.4023199
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