|Table of Contents|

Numerical study on pressurization process of liquid oxygen tank(PDF)

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

Issue:
2013年04期
Page:
80-84
Research Field:
测控与试验
Publishing date:

Info

Title:
Numerical study on pressurization process of liquid oxygen tank
Author(s):
CHEN Chun-fu;  LI Mao;  WANG Shu-guang
Beijing Institute of Aerospace Testing Technology, Beijing 100074, China
Keywords:
-
PACS:
V434+.13-34
DOI:
-
Abstract:
Pressurization process of the liquid oxygen tank was studied with a numerical simulation method. Volume of fluid (VOF) model was used for flow field inside the tank. The standard k-ε turbulence model was selected to analyze the turbulence effect, and a user-defined function (UDF) for phase transition was used to solve the heat and mass transfer between the liquid and the ullage gas. The effects of the factors including the tank pressure, mass flow rate of liquid oxygen, ullage gas temperature and liquid oxygen temperature on the temperature distribution of flow field inside the tank were obtained. The calculated results show that the liquid surface has no disturbance and the distribution of the ullage gas temperature is stratified in the steady pressurization process; the main influence of the factors on the temperature distribution is the variation of temperature gradient; and the temperature gradient near the liquid surface and the injector is almost the same in different working condition.

References:

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