Pulsating Flow in Curved Pipes : 2nd Report, Experiments

Abstract

A pulsating flow in circular curved pipes is investigated experimentally. The experiment is executed in the region from the laminar flow to the turbulent one. Pressure drops are measured under the conditions of various frequencies, flow rate ratios and radii of curvature of the pipes. The experimental results are reported on the time-mean value, the amplitude and the phase difference of the pressure gradient and the power loss. These results are in good agreement with the approximate ones which are derived under the assumption of a quasi-steady flow.