Effect of inlet wetness on transonic wet-steam and moist-air flows in turbomachinery

被引：39

作者：

Yamamoto, Satoru ^{[1
]}

Moriguchi, Shota ^{[1
]}

Miyazawa, Hironori ^{[1
]}

Furusawa, Takashi ^{[1
]}

机构：

[1] Tohoku Univ, Dept Comp & Math Sci, Aoba Ku, 6-6-01 Aramaki Aza Aoba, Sendai, Miyagi 9808579, Japan

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2018年 / 119卷

关键词：

Inlet wetness; Condensation; Evaporation; Wet-steam flow; Moist-air flow; Transonic flow; Turbine; Compressor; CONDENSATION; CASCADE; PERFORMANCE; PRESSURE; EULER;

D O I：

10.1016/j.ijheatmasstransfer.2017.12.001

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

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.

引用

页码：720 / 732

页数：13