The effect of dense gas dynamics on loss in ORC transonic turbines
The effect of dense gas dynamics on loss in ORC transonic turbines
复制标题
稠密气体动力学对 ORC 跨音速涡轮机损失的影响
DOI:
10.1088/1742-6596/821/1/012021
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Durá Galiana F
中科院分区:
文献类型:
--
作者:
Durá Galiana F
This paper describes a number of recent investigations into the effect of dense gas dynamics on ORC transonic turbine performance. We describe a combination of experimental, analytical and computational studies which are used to determine how, in-particular, trailing-edge loss changes with choice of working fluid. A Ludwieg tube transient wind-tunnel is used to simulate a supersonic base flow which mimics an ORC turbine vane trailing-edge flow. Experimental measurements of wake profiles and trailing-edge base pressure with different working fluids are used to validate high-order CFD simulations. In order to capture the correct mixing in the base region, Large-Eddy Simulations (LES) are performed and verified against the experimental data by comparing the LES with different spatial and temporal resolutions. RANS and Detached-Eddy Simulation (DES) are also compared with experimental data. The effect of different modelling methods and working fluid on mixed-out loss is then determined. Current results point at LES predicting the closest agreement with experimental results, and dense gas effects are consistently predicted to increase loss.
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影响因子:
3.7
作者:
P. Cinnella;P. Congedo
通讯作者:
P. Congedo
DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
J. Anders;W. Anderson;A. Murthy
通讯作者:
A. Murthy
DOI:
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2000
期刊:
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences
影响因子:
--
作者:
A. Kluwick
通讯作者:
A. Kluwick
影响因子:
2.5
作者:
W. Anderson
通讯作者:
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DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
A. Kluwick
通讯作者:
A. Kluwick