|Table of Contents|

Numerical simulation of cryogenic gaseous hydrogen emission(PDF)

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

Issue:
2013年04期
Page:
74-79
Research Field:
测控与试验
Publishing date:

Info

Title:
Numerical simulation of cryogenic gaseous hydrogen emission
Author(s):
LI Mao;  SUN Wan-min;  LIU Rui-min
Beijing Institute of Aerospace Testing Technology, Beijing 100074, China
Keywords:
cryogenic gaseous hydrogen;  diffuse area;  combustion model;  numerical
PACS:
V434-34
DOI:
-
Abstract:
The cryogenic emission and burning emission of cryogenic gaseous hydrogen were investigated numerically for safe emission. The standard k-ε turbulence model and the uni-step H-O reaction model was used in the simulation calculation to get the gaseous hydrogen emission pressure, mass flow rate, temperature, environment wind speed, as well as hydrogen diffuse area and burning area as the evaluation index. The calculated results show that the burning area by burning emission is smaller than the diffuse area by cryogenic emission, and increase of emission pressure, amplification of mass flow rate and reduction of temperature can lead to the wide diffuse area and burning area of gaseous hydrogen.

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