|Table of Contents|

Numerical simulation on the combustion characteristic of shear coaxial G02/GCH4 inj ector(PDF)

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

Issue:
2009年05期
Page:
18-23
Research Field:
研究与设计
Publishing date:

Info

Title:
Numerical simulation on the combustion characteristic of shear coaxial G02/GCH4 inj ector
Author(s):
Gao YushanDu ZhenggangJin PinCai Guobiao
School of Astronautics,Beijing University of Aeronautics and Astronautics,Beijing 100191,China
Keywords:
GO2/GCH4 injectordesign parameterscombustion efficiencytemperature numedeal simulation
PACS:
V434
DOI:
-
Abstract:
Numerical simulation of shear coaxial G02/GCH4 injector is conducted to study the effects of the design parameters on the combustion characteristics and the heat flux of the wall and faceplate.The results show that increasing the oxygen injected velocity is harmful to mixing and combustion and makes the combustion efficiency decreased and the heat flux of the wall and faceplate increased.Higher momentum ratio enhanced the mixing and the combustion and made a short combustion length.The higher the combustion efficiency,the higher the heat flux of the wall and faceplate.The thickness and recess of the gas oxygen post had influence on the combustion efficiency, but less influence on the heat flux of the wall and faceplate.The recess of the gas oxygen post existed an optimum value on the combustion efficiency.

References:

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Last Update: 1900-01-01