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Enhanced vortex stability in trapped vortex combustor

Published online by Cambridge University Press:  03 February 2016

S. Vengadesan  and
C. Sony
S. Vengadesan
Affiliation:
vengades@iitm.ac.in, Department of Applied Mechanics, Indian Institute of Technology of Madras, Chennai, India
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Abstract

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The Trapped Vortex Combustor (TVC) is a new design concept in which cavities are designed to trap a vortex flow structure established through the use of driver air jets located along the cavity walls. TVC offers many advantages when compared to conventional swirl-stabilised combustors. In the present work, numerical investigation of cold flow (non-reacting) through the two-cavity trapped vortex combustor is performed. The numerical simulation involves passive flow through the two-cavity TVC to obtain an optimum cavity size to trap stable vortices inside the second cavity and to observe the characteristics of the two cavity TVC. From the flow attributes, it is inferred that vortex stability is achieved by circulation and the vortex is trapped inside when a second afterbody is added.

Information

Type
Technical note
Information
The Aeronautical Journal , Volume 114 , Issue 1155 , May 2010 , pp. 333 - 337
Copyright
Copyright © Royal Aeronautical Society 2010 

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