|Table of Contents|

Comparative study on performance and strength of multi-stage turbine with aero-thermal coupling simulation(PDF)

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

Issue:
2020年01期
Page:
76-82
Research Field:
研究与设计
Publishing date:

Info

Title:
Comparative study on performance and strength of multi-stage turbine with aero-thermal coupling simulation
Author(s):
ZHANG Pengfei;  JIA Shaofeng;  XU Kaifu;  ZHU Donghua;  REN Zhong
(Xi’an Aerospace Propulsion Institute,Xi’an 710100, China)
Keywords:
turbine disk;  aero-thermal coupling;  aerodynamic performance;  structural strength;  equivalent stress
PACS:
V43文献标识码:A 文章编号:1672-9374(2020)01-0076-07
DOI:
-
Abstract:
In aerospace engines, the working environment of the turbine is harsh andthe turbine bears strong thermal shock under the coupling effect of flow and heat transfer. Its structural strength problem is very serious. The aerodynamic and strength performance of a multi-stage turbine was studied with the aerodynamic simulation and aero-thermal coupling simulation, respectively. The thermal boundary conditions are extracted to perform the finite element simulation of the turbine disk. The results show that the aerodynamic performance of the turbine obtained by the two analysis methods is very close, but the temperature distribution on the surface of the turbine disk is quite different. The deviation of the calculated radial deformation reaches 16% and the equivalent stress deviation is up to 50～100 MPa. The results of the aero-thermal coupling simulation are more reliable.

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Last Update: 2020-02-25