Experimental results showing the internal three-component velocity field and outlet temperature contours for a model gas turbine combustor

Abstract

A three-component flow field inside a can-type, forward flow experimental combustor was measured under non-reacting conditions. The combustor was run at atmospheric conditions with the air flow supplied from a fan and the outlet was straight to atmosphere. Temperature data, under reacting conditions, in the combustor was also obtained using a thermocouple rake as well as an outlet velocity profile using a Pitot tube at reacting and non-reacting conditions. For the flowfield measurements a stereoscopic PIV system was used to measure the flow field data thus an optically accessible combustor was required. The combustor for these experiments was manufactured out of Perspex and thus only nonreacting experiments could be performed. This combustor was a replica of the metal combustor used for the reacting experiments except for the slightly thicker walls.