Microphone based static pressure probe measurements in two dimensional fluid flows

Abstract

Wind tunnel experiments were conducted on two dimensional flow field downstream of a normal plate/splitter plate combination. The effect of varied level of perforation of the normal plate on fluctuating pressures measured across and along the separation bubble was studied using microphone based static pressure probe. The normal plate perforation levels used were 0%, 10%, 20%, 30% and 40%. The Reynolds number based on step height was varied from 4 � 103 to 1.2 � 104. The analysis of the results show that the maximum fluctuating pressure coefficient in the flow field, base pressure coefficient and the perforation level can be well correlated, for the cases studied. Copyright � 2013 APCWE-VIII. All rights reserved. Published by Research Publishing, Singapore.