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对多管除尘器的配气叶片安装的改进
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作者 李皋铿 吴文虎 杨志斌 《冶金设备管理与维修》 1996年第2期31-31,共1页
改变配气叶片的安装形式,除尘效果好,可延长风机转子的使用寿命。
关键词 多管除尘器 配气叶片 安装 改进 使用寿命 转子 烧结机
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Analysis of Internal Cooling Geometry Variations in Gas Turbine Blades 被引量:3
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作者 M.Eifel V.Caspary +1 位作者 H.Hnen P.Jeschke 《Journal of Thermal Science》 SCIE EI CAS CSCD 2009年第4期289-293,共5页
The present investigation analyzes the effects of major geometrical modifications to the interior of a convectioncooled gas turbine rotor blade. The main focus lies on the flow of the leading edge channels and the imp... The present investigation analyzes the effects of major geometrical modifications to the interior of a convectioncooled gas turbine rotor blade. The main focus lies on the flow of the leading edge channels and the impact on theheat transfer. An experimental approach is performed with flow visualization via paint injection into water. Alsonumerical calculations are carried out in two sets, on the one hand water calculations accompanying the experimentsand on the other hand conjugate heat transfer calculations under realistic engine conditions. The latter calculationsare still ongoing delivering preliminary results.Five geometry configurations are investigated, three of them with differing turbulator arrangements in the leadingedge channels. The operating point of the base configuration is set to Re = 50,000 at the inlet while for the modifiedgeometries the pressure ratio is held constant compared to the base.Among several investigated configurations one could be identified that leads to a heat transfer enhancement inone leading edge channel 7 % larger compared to the base. 展开更多
关键词 Convection cooling geometry modification experiment paint injection CFD conjugate heat transfer
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