Title

Effect Of Inlet Swirl On The Performance Of Annular Diffusera Having The Same Equivalent Cone Angle

Keywords

Annular diffuser; Equivalent cone angle; Gas turbine engine; Inlet swirl; Static pressure recovery coefficient; Total pressure loss coefficient

Abstract

Annular diffusers are an integral component of the gas turbine engines of high-speed aircraft. These facilitate effective operation of the combustor by reducing the total pressure loss. The performance characteristics of these diffusers depend on their geometry and the inlet conditions. The present investigation attempts to select the range of the inlet swirl intensity for the best performance of annular diffusers with different geometries but having the same equivalent cone angle. This is analysed on the basis of the static pressure recovery and total pressure loss coefficients. The results show that the parallel diverging hub and casing annular diffuser produces the best performance at high-swirl intensities. © IMechE 2006.

Publication Date

12-1-2006

Publication Title

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering

Volume

220

Issue

2

Number of Pages

129-143

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1243/09544100G05004

Socpus ID

33947576600 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/33947576600

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