Published May 7, 2018
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Sweeping Jet Impingement Heat Transfer on a Simulated Turbine Vane Leading Edge
Authors/Creators
- 1. Department of Mechanical and Aerospace Engineering, The Ohio State University USA
Description
Experiments were conducted in a low speed wind tunnel to investigate sweeping jet impingement cooling in a faired cylinder leading edge model at an engine-relevant Biot number (Bi). Both sweeping and steady jets were studied at varying mass flow rates, jet-to-wall spacing (H/D), jet pitch (P/D), and freestream turbulence. The effect of varying aspect ratio (AR) of the sweeping jet geometries was also studied. Infrared thermography (IR) was used to determine the overall cooling effectiveness. The sweeping jet provided higher overall effectiveness values compared to steady jet in some configurations. Pressure drop was also measured for each geometry, and the sweeping jet shows less pressure drop than the steady jet.
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References
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