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Wide angle diffusers with passive boundary-layer control

Published online by Cambridge University Press:  04 July 2016

S. Raghunathan ,
T. Mcllwain  and
D. G. Mabey
S. Raghunathan
Affiliation:
The Queen’s University of Belfast
T. Mcllwain
Affiliation:
The Queen’s University of Belfast
D. G. Mabey
Affiliation:
Royal Aerospace Establishment, Bedford
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Abstract

Experiments were made on a two-dimensional low speed diffuser with passive control. The passive control consisted of porous surfaces made of holes/slots connected by a breather passage. Passive control postpones the stall and reduces buffet levels in the diffuser. This test confirms that passive controls to prevent flow separation are not restricted to transonic speeds.

Type
Research Article
Information
The Aeronautical Journal , Volume 95 , Issue 941 , January 1991 , pp. 28 - 34
Copyright
Copyright © Royal Aeronautical Society 1991 

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