Effect of Divergence Angle on the Performance and Flow Analysis of 3D Annular Diffuser of an Aircraft Engine using CFD Technique

Effect of Divergence Angle on the Performance and Flow Analysis of 3D Annular Diffuser of an Aircraft Engine using CFD Technique

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2017 by IJETT Journal
Volume-49 Number-6
Year of Publication : 2017
Authors : Sharan Padashetty, Pravin Honguntikar, K. Rajagopal
DOI :  10.14445/22315381/IJETT-V49P251

Citation 

Sharan Padashetty, Pravin Honguntikar, K. Rajagopal "Effect of Divergence Angle on the Performance and Flow Analysis of 3D Annular Diffuser of an Aircraft Engine using CFD Technique", International Journal of Engineering Trends and Technology (IJETT), V49(6),335-344 July 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract
The performance characteristics of diffusers depends on their geometry and the inlet conditions. The present investigation attempts to select an optimal divergence angle of diffuser. This is analysed on the basis of static pressure recovery and total pressure loss coefficients. Simulation of air flow in various annular diffuser geometry is carried out using ANSYS FLUENT. The geometric limitations of the aircraft engines in which the diffusers are to be designed so as to get maximum pressure recovery within shortest possible length led to the design and development of annular diffuser.

Reference
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Keywords
Annular diffuser, Gas turbine aircraft engine, divergence angle, static pressure recovery coefficient, velocity vector contours.