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

Issue:

2009年01期

Page:

31-35

Research Field:

研究与设计

Publishing date:

Info

Title:

Numerical analysis of inner flow field for an impulse turbine

Author(s):

Yah Junfeng; Lu Wanruo

Xi7an Aerospace Propulsion Institute，Xi 7an 7 10100，China

Keywords:

turbl’ne; numencal simulation; efficiency

PACS:

V434.21 1

DOI:

-

Abstract:

The numerical analysis of the inner flow field using Numeca is presented at the different work points for an impulse turbine．The changes of the aerodynamic parameters，the mass flow and the isentropic efficiency have been investigated in detail．It can be concluded that the flow field in the impulse turbine is very complicated．High Mach number in turbine stator outflow results in a bigger loss of shocks．Airflow separation is serious on the trailing edge of turbine rotor，which is caused by smaller outlet velocity of impulse turbine in low reaction degree conditions．The results show that the numerical analysis data are in agreement with the experimental data．

References:

[l]刘兴洲．飞航导弹动力装譬[M]．北京：字航m版社，1992．
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[3]袁宁，王松涛．张振家，等．涡轮级i维粘性流场的数 值模拟[J]．航空动力学报．1999，14(2)：135—138．
[4]严俊峰，陈炜．高速复合叶轮离心泵多相位流动数值模 拟[J]．火箭推进．2007，33(1)：28—31．
[5]NUMECA626[Z]．北京：尤迈克(北京)流体T程技术有限 公司．2004．
[6]张远君．液体火箭发动机涡轮泵设计[M]．北京：北京航 空航天大学出版社．1995．
[7]黄智勇，李昌奂，黄红．高r况涡轮泵轴系状态对丁作可 靠性的影响[J]．火箭推进，2007，33(1)：32—35．

Memo

Memo:

-

Common functions

Last Update: 1900-01-01