A Study of Trailing-Edge Losses in Organic Rankine Cycle Turbines
A Study of Trailing-Edge Losses in Organic Rankine Cycle Turbines
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DOI：
10.1115/gt2015-42920
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发表时间：
2015-06
期刊：
影响因子：
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通讯作者：
F. Galiana;Andrew P. S. Wheeler;J. Ong
中科院分区：
文献类型：
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作者：
F. Galiana;Andrew P. S. Wheeler;J. Ong
本文对有机朗肯循环（ORC）涡轮叶片尾缘损失进行了研究。采用新型的路德维格管实验装置，研究了稠密气体效应对超音速流动尾缘损失的影响。该数据还用于验证CFD流动求解器。然后用计算模拟来确定发生在叶片尾缘的冲击和粘性效应对损失的贡献。结果表明，密集气体效应对后缘流动结构起着至关重要的作用，并控制着激波和粘滞损失的程度。ASME版权所有©2015
In this paper vane trailing-edge losses which occur in Organic Rankine Cycle (ORC) turbines are investigated. Experiments are performed to study the influence of dense gas effects on trailing-edge loss in supersonic flows using a novel Ludwieg tube facility for the study of dense-gas flows. The data is also used to validate a CFD flow solver. The computational simulations are then used to determine the contributions to loss from shocks and viscous effects which occur at the vane trailing-edge. The results show that dense gas effects play a vital role in the structure of the trailing-edge flow, and control the extent of shock and viscous losses.Copyright © 2015 by ASME