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首页> 外文会议>ASME TURBO EXPO >THE EFFECTS OF UNINTENTIONAL DEVIATIONS DUE TO MANUFACTURING OF COOLING HOLES AND OPERATION ON TRANSPIRATION COOLING EFFICIENCY
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THE EFFECTS OF UNINTENTIONAL DEVIATIONS DUE TO MANUFACTURING OF COOLING HOLES AND OPERATION ON TRANSPIRATION COOLING EFFICIENCY

机译：由于制造冷却孔和蒸腾冷却效率的操作而导致意外偏差的影响

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A full-coverage cooled multi-layer plate configuration is investigated numerically by application of a 3-D conjugate fluid flow and heat transfer solver, CHTflow. The geometrical setup and the fluid flow conditions derive from modern gas turbine combustion chambers and bladings. The numerical grid contains the coolant supply (plenum), the solid body and the main flow area on the plate. The full-coverage cooling is realized by finest drilled holes with a diameter of 0.2 mm that are shaped in the region of the thermal barrier coating. Two different effects will be considered in this paper. First, the effects of deviations in the cooling hole geometry due to the manufacturing process will be discussed, then the effects of an obstruction in one of the cooling holes will be looked at. The numerical investigation focuses on the cooling efficiency on the plate surface and on the cooling hole surface as well as the aerodynamics in the main flow. The scientific work is embedded in the Collaborative Research Center 561 at RWTH Aachen University.
机译：通过施加3-D缀合物流体流量和传热求解器，CHTFLOM来计算全覆盖冷却的多层板配置。几何设置和流体流动条件从现代燃气涡轮燃烧室和叶片中获得。数值网格含有冷却剂供应（增压室），固体和板上的主流量区域。全覆盖冷却通过最精细的钻孔孔实现，其直径为0.2mm，其在热阻挡涂层的区域中成形。本文将考虑两种不同的效果。首先，将讨论由于制造过程的冷却孔几何形状中的偏差的影响，则将研究障碍物在其中一个冷却孔中的效果。数值研究侧重于板表面和冷却孔表面上的冷却效率以及主流中的空气动力学。科学工作嵌入在亚琛大学的第561号协作561。

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