|Table of Contents|

Numerical simulation of air turbo rocket engine at windmilling state(PDF)

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

Issue:
2015年06期
Page:
16-20
Research Field:
研究与设计
Publishing date:

Info

Title:
Numerical simulation of air turbo rocket engine at windmilling state
Author(s):
ZHANG Liuhuan;  LU Wanruo
Xi’an Aerospace Propulsion Institute, Xi’an 710100, China
Keywords:
air turbo rocket engine;  windmilling state;  numerical simulation;  in
PACS:
V434-34
DOI:
-
Abstract:
Under the flight condition that is flight altitude 20 km and mach number 3, numerical simulation of Air Turbo Rocket engine(ATR) at windmilling state is presented in the paper. Based on the structure of ATR, the 3-D numerical model is established, and the flowfield at different appointed revs is obtained by using the method of computational fluid dynamics. It's found that static pressure decreases and the velocity increases at the entrance of ATR as the revs of compressor rotor increases. Meanwhile taking that the value of torque is zero as the criterion of windmilling state, it is confirmed that under the given flight condition the revs of ATR at windmilling state is about 6 900 r/min, and the internal drag is about 2 170 N.And the total pressure loss is about 61% all through the engine. Through the compressor, the total pressure loss reaches about 32.6%.

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Last Update: 1900-01-01