Author(s): Ali Oveisy; M. A. Banihashemi
Linked Author(s): Ali Oveisy, Mohammad Ali Banihashemi
Keywords: Brupt expansion; Energy loss; Shock wave; Supercritical flow
Abstract: The experimental results on energy loss and shock wave front location at a channel abrupt expansion, assuming one-dimensional concept, are presented. Different streamwise non-dimensional coordinates are introduced for the generalization of experimental observations and the most proper one is determined. A simple method is presented for estimating energy loss and shock wave front location for a supercritical flow at an abrupt expansion. Further, the observed energy loss is compared with that of the theoretical gradually varied flow with the same initial energy for each run. The energy loss, which was calculated using Hager and Mazumder (1992) experimental observations, is expressed using the new non-dimensional coordinate, and it shows a fair correlation.
Year: 2001