Effect of Axisymmetric Aft Wall Angle Cavity in Supersonic Flow Field-Reference-Cited by-同舟云学术

Effect of Axisymmetric Aft Wall Angle Cavity in Supersonic Flow Field

Published:2018-02-14 Issue:1 Volume:35 Page:29-34
ISSN:2191-0332
Container-title:International Journal of Turbo & Jet-Engines
language:en
Short-container-title:

Author:

Jeyakumar S.¹,Assis Shan M.²,Jayaraman K.³

Affiliation:

1. Department of Mechanical Engineering , Kalasalingam University , Krishnankoil , India-626126

2. Department of Mechanical Engineering , Musaliar College of Engineering & Technology , Kerala , India-689653

3. ICARE-CNRS , Orleans , France

Abstract

Abstract Cavity plays a significant role in scramjet combustors to enhance mixing and flame holding of supersonic streams. In this study, the characteristics of axisymmetric cavity with varying aft wall angles in a non-reacting supersonic flow field are experimentally investigated. The experiments are conducted in a blow-down type supersonic flow facility. The facility consists of a supersonic nozzle followed by a circular cross sectional duct. The axisymmetric cavity is incorporated inside the duct. Cavity aft wall is inclined with two consecutive angles. The performance of the aft wall cavities are compared with rectangular cavity. Decreasing aft wall angle reduces the cavity drag due to the stable flow field which is vital for flame holding in supersonic combustor. Uniform mixing and gradual decrease in stagnation pressure loss can be achieved by decreasing the cavity aft wall angle.

Publisher

Walter de Gruyter GmbH

Subject

Aerospace Engineering

Link

https://www.degruyter.com/document/doi/10.1515/tjj-2016-0027/pdf

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