Experimental investigatin and conjugate flow and heat transfer analysis of the inlucence of the density ratio on a showerhead-cooled turbine guide vane

机译：花洒冷却的涡轮导流叶片上密度比无害的实验研究以及共轭流动和传热分析

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Shower head cooling is one of the most efficient cooling techiques for gas turbine bladings.Density effects have to e taken into account analyzing the corresponding film-cooling phenomena.They occur due to the temperature ratio between the hot gas and the cooling gas.unfortunately,experimentla investigations with realistic temperatue ratios are extremely expensive.thus,CO_2 is used as cooling gas in the experimental part of the present investigation in the cold air test turbine of the Institute of Sfteam and Gas Turbines which is equiped with a modern shower head cooled first stage guide vane.This allows to have ralistic density ratios of about 0.5 between the main flow and the cooling gas.

机译：喷头冷却是燃气轮机叶片最有效的冷却技术之一，在分析相应的薄膜冷却现象时必须考虑密度效应，这是由于热气与冷却气之间的温度比引起的。在实际温度比下进行实验研究非常昂贵。因此，在本研究的实验部分中，烟气和燃气轮机研究所的冷空气测试涡轮中使用了CO_2作为冷却气体，该涡轮首先配备了先冷却的现代喷淋头级导叶。这使得主流和冷却气体之间的相对密度比约为0.5。

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《The Third international conference on pumps and fans(3rd ICPF)》|1998年|p.462-473|共12页
会议地点 Beijing(CN);Beijing(CN)
作者
Dieter E.Bohn; Volker J.Becker; Agnes U.Rungen;
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正文语种 eng
中图分类机械、仪表工业;
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4. Experimental investigatin and conjugate flow and heat transfer analysis of the inlucence of the density ratio on a showerhead-cooled turbine guide vane [C] . Dieter E.Bohn, Volker J.Becker, Agnes U.Rungen International conference on pumps and fans . 1998

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7. Experimental and Numerical Conjugate Flow and Heat Transfer Investigation of a Shower-Head Cooled Turbine Guide Vane [O] . Dieter E. Bohn, Volker J. Becker, Agnes U. Rungen 1997

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Experimental investigatin and conjugate flow and heat transfer analysis of the inlucence of the density ratio on a showerhead-cooled turbine guide vane

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