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《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:

2022年03期

Page:

50-56

Research Field:

研究与设计

Publishing date:

Info

Title:

Simulation of rotating flow characteristics in U-shaped cooling channel of turbine blade

Author(s):

DING Xu¹;  WU Chuanwei²;  LIU Tao¹;  SONG Jiangtao¹

(1.Chinese Flight Test Establishment,Aviation Industry Corporation of China Limited, Xian 710089, China 2.Harbin Institute of Technology, Harbin 150001, China)

Keywords:

rotating blade U-shaped cooling channel vortex secondary flows blade cooling

PACS:

V235.21

DOI:

-

Abstract:

In order to study the flow characteristics in U-channel of engine turbine blade under rotating condition, a numerical simulation method for U-channel of turbine blade under rotating condition is established by fluent.In the simulation with fluent, the simple algorithm of the double-precision velocity-pressure coupled solver is used, the k-ω SST model is used for the turbulence model, the second-order upwind difference scheme is used for the pressure momentum term and density term, the fast scheme is used for the calculation of energy term.The flow characteristics in U-channel under the static condition and the rotating condition are analyzed and compared.The results show that compared with the static condition, rotation makes the flow of liquid in the U-shaped channel more complicated and the secondary flow more serious, the degree of turbulence intensifies and the heart transfer is enhanced.Under the action of Coriolis force, the radial outflow and the radial inflow flow are opposite.In the horizontal pipe section, the heat transfer effect is the strongest due to the combined effect of rotation and Dean Vortex.

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Memo

Memo:

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Common functions

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