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Numerical analysis of influence factor on convective heat transfer coefficient about nozzle internal flow(PDF)

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

Issue:
2011年03期
Page:
32-37
Research Field:
研究与设计
Publishing date:

Info

Title:
Numerical analysis of influence factor on convective heat transfer coefficient about nozzle internal flow
Author(s):
WANG Ming-hua;  CHEN Jin-song
Beijing Institute of Space Launch Technology, Beijing 100076, China
Keywords:
convective heat transfer coefficient of rocket nozzle;  mesh Reynolds number;  constant temperature wall;  boundary layer;  aerothermodynamics
PACS:
V434-34
DOI:
-
Abstract:
The convective heat transfer coefficient of nozzle internal flow in a liquid oxygen-kerosene rocket engine is simulated with Roe-FDS computation format and a standard k-ε turbulence model. The effects of mesh Reynolds number and constant wall temperature on the convective heat transfer of nozzle internal flow are analyzed. The simulated result is in good agreement with the result of engineering estimation when the order of magnitude of first near-wall mesh altitude is 10-3 mm. In a given scope, the convective heat transfer coefficient increases with the increase of flow velocity, and the influence of constant wall temperature on the convective heat transfer coefficient is indistinctive.

References:

[1]阎超, 禹建军, 李君哲. 热流CFD计算中格式和网格效应若干问题研究[J]. 空气动力学学报, 2006, 24(1): 127-132.
[2]SWAMINATHAN V, SETTY Speenivasa, RAMAMADHAV B S. A method for the evaluation of temperature in rocket motor nozzles with varying heat transfer coefficients, AIAA 75-1347 [R]. USA: AIAA, 1975.
[3]李君哲, 阎超, 柯伦, 等. 气动热CFD计算的格式效应研究[J]. 北京航空航天大学学报, 2003, 29(11): 76-79.
[4]覃文洁, 胡春光, 郭良平, 等. 近壁面网格尺寸对湍流计算的影响[J]. 北京理工大学学报, 2006, 26(5): 16-20.
[5]杨世铭, 陶文铨. 传热学(第四版)[M]. 高等教育出版社, 2006.
[6]B K 科什金. 航空与火箭技术中的传热原理[M]. 北京: 科学出版社, 1963.
[7]张宏伟, 陶文铨, 何雅玲, 等. 再生冷却推力室耦合传热数值模拟[J]. 航空动力学报, 2006, 21(5): 148-154.
[8]TOMIFUMI Godai, YOSHINORI Yuzawa, KATUYA Ito, et al. An experimental investigation of heat transfer in the nozzle of high-aluminized solid rocket, NASA TT F-12 [R]. [S. l.]: NASA TT, 1968.

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Last Update: 1900-01-01