期刊
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
卷 119, 期 -, 页码 720-732出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2017.12.001
关键词
Inlet wetness; Condensation; Evaporation; Wet-steam flow; Moist-air flow; Transonic flow; Turbine; Compressor
资金
- JSPS KAKENHI [16H0461]
This study investigates the effect of inlet wetness on transonic wet-steam and moist-air flows through turbine and compressor cascade channels. We first simulated the transonic wet-steam flows through a Bakhtar's turbine cascade channel under wind-tunnel conditions with inlet wetness. We then predicted the effects of inlet wetness on the moist-air flows expected through an aircraft engine and an industrial gas turbine. For this purpose, we simulated the transonic moist-airflows through a transonic compressor cascade channel while changing the inlet wetness conditions. In both wet-stream and moist-air flows, the inlet wetness was quite sensitive to the growth and evaporation rates of the water droplets, and greatly influenced the shock location. Our results for moist-air flows suggest that the temperature beyond the shock is effectively decreased by a large number density of smaller water droplets. (C) 2017 Elsevier Ltd. All rights reserved.
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