GAP FLOW BEHIND TWO PLATES HAVING ASYMMETRIC BEVELED TRAILING EDGE

Abstract

The effect of both gap size and Reynolds number variation on the flow between two plates having asymmetric beveled trailing edge placed sideby-side in a uniform stream have been investigated both numerically and experimentally. Two plates with gap ratios of 0.5, 1.0 and 1.5 and beveled trailing edge of angle 20 o have been tested. The effect of Reynolds number variation on the gap flow was examined for gap ratio s/t 1.0 . The tested Reynolds number range was from 4 2.1810 to 4 3.6810 . The results displayed that the gap size has a pronounced effect on the gap flow for gap ratios less than 1.5, where the wake behind the two plates shows an asymmetric development for gap ratios 0.5 and 1.0 and a symmetric development for gap ratio equal to 1.5. The results showed also that Reynolds number has a weak effect on the gap flow characteristics within the tested range of Reynolds number