Base and wall pressure control using cavities and ribs in suddenly expanded flows -an overview

Sethuraman, Vigneshvaran and Rajendaran, Parvathy and Khan, Sher Afghan (2020) Base and wall pressure control using cavities and ribs in suddenly expanded flows -an overview. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 66 (1). pp. 120-134. ISSN 2289-7879

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Abstract

An understanding of fluid flow in sudden expansion has resulted in a great deal of research work in this area. Of particular interest is the study of base drag which influences the performance of automotive vehicles, aircraft, and missiles. Problems of fuel mixing in combustion chambers and reduction of specific fuel consumption are also governed by the phenomenon of base drag. It is the aim of this study to present a brief review of the work carried out in the area of sudden expansion in a duct with particular accent on a few active and passive controls employed to modify the base drag. It is noteworthy that a reduction in base drag is of benefit in combustion mechanisms while an in-crease in base drag is preferred for net drag reduction of bodies moving through air. Suppression of flow oscillations that accompany the control of base drag also merits attention. A few suggestions by way of future work are also discussed.

Item Type:	Article (Journal)
Additional Information:	7395/79458
Uncontrolled Keywords:	Base pressure; cavities; ribs; suddenly expanded flows; wall pressure
Subjects:	T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL780 Rockets
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Prof. Dr. Sher Afghan Khan
Date Deposited:	13 Apr 2020 12:04
Last Modified:	13 Apr 2020 12:04
URI:	http://irep.iium.edu.my/id/eprint/79458

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