Experimental hot-wire measurements in a centrifugal compressor with vaned diffuser

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Pinarbaşi A.

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, vol.29, pp.1512-1526, 2008 (SCI-Expanded) identifier identifier


The purpose of this study was to improve the understanding of the flow physics in a centrifugal compressor with vaned diffuser. For this reason three component hot wire measurements in the vaneless space and vane region of a low speed centrifugal compressor are presented. A low speed compressor with a 19 bladed backswept impeller and diffuser with 16 wedge vanes were used. The measurements were made at three inter-vane positions and are presented as mean velocity, turbulent kinetic energy and flow angle distributions.