Flow and heat transfer characters in the integral internal cooling channel of a turbine blade

Tao Guo, Huiren Zhu, Zhixiang Zhou

科研成果: 期刊稿件会议文章同行评审

摘要

A scaled model of the integral internal cooling channel of a turbine blade was established for the experimental investigation. The model was made by Perspex for its transparency so that the thermochromic liquid crystal measurement could be used easily. The cooling channel is composed of 3 legs of ribbed channels. Rib with angle 45° was settled in both pressure side and suction side, which forms a cross-rib structure. Three legs were connected by two 180° turns. The main inlet and two addition inlets were arranged in the root of the model channel. Two discharge outlets were located in the tip. A row of outlet holes was distributed along the trailing edge. The channel area gradually decreases along the blade height direction, while bending and torsion occur because of the blade airfoil shape. The aspect shapes and connection methods of the channel were kept in accordance with the real blade. The inlet Reynolds number is from 10000 to 32000. Five outlet discharge ratios were alternated in this investigation. The detailed heat transfer distributions, both in the pressure side and suction side, were measured by transient liquid crystal technic. The characters of heat transfer distribution and pressure drop along the channel were displayed. The effects of flow discharge ratio on heat transfer and pressure coefficient were also described.

源语言英语
文章编号012006
期刊Journal of Physics: Conference Series
1369
1
DOI
出版状态已出版 - 26 11月 2019
已对外发布
活动5th International Workshop on Heat/Mass Transfer Advances for Energy Conservation and Pollution Control, IWHT 2019 - Novosibirsk, 俄罗斯联邦
期限: 13 8月 201916 8月 2019

指纹

探究 'Flow and heat transfer characters in the integral internal cooling channel of a turbine blade' 的科研主题。它们共同构成独一无二的指纹。

引用此