|Table of Contents|

Virtual thermal vacuum test technology of liquid-propellant rocket engine components(PDF)

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

Issue:
2021年04期
Page:
64-70
Research Field:
研究与设计
Publishing date:

Info

Title:
Virtual thermal vacuum test technology of liquid-propellant rocket engine components
Author(s):
ZHANG Weijing; LIU Zhanyi; LIU Jiwu; SHI Xiaobo; HU Jinhua; CHENG Yawei
(Science and Technology on Liquid Rocket Engine Laboratory,Xian Aerospace Propulsion Institute,Xian 710100,China)
Keywords:
liquid-propellant rocket engine virtual test optical tracking method radiation heat-transfer
PACS:
V434.3
DOI:
-
Abstract:
Compared to the real thermal vacuum test,the virtual thermal vacuum test is able to reduce cost and time effectively during the product development.The investigation on virtual thermal vacuum test for liquid-propellant rocket engine components is carried out, and the virtual thermal vacuum environment test platform,which consists of vacuum chamber,heat sink,quartz lamp array and liquid-propellant rocket engine components,is built up based on the Sinda-fluint thermal analysis software.There is a great deal of surface-to-surface radiation heat-transfer in the virtual test,which is bound to consume massive computing resource.This problem is processed based on Monte Carlo optical tracking method.As to the quartz lamp array,its heat source characteristics are analyzed,and it is simplified as a high temperature plate.A proof test is carried out and the results show the accuracy of the model.Finally,taking a flow adjuster of a liquid-propellant rocket engine as an example,both the actual and the virtual thermal vacuum experiments are carried out simultaneously.According to the temperature variation during the whole test,the maximum temperature variation between the virtual test and the experimental results is less than 10% during the whole test process,which verifies the effectiveness of the virtual test platform.

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