矩形通道内航空煤油浮升力影响及判据分析

王壮壮; 周章文; 张登成; 粟银

doi:10.15892/j.cnki.djzdxb.2020.02.021

弹箭与制导学报 >

2020 , Vol. 40 >Issue 2: 83 - 88

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2020.02.021

矩形通道内航空煤油浮升力影响及判据分析

王壮壮 ¹ ,
周章文 ² ,
张登成 ² ,
粟银 ³

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¹ 空军工程大学航空机务士官学校, 河南信阳 464000
² 空军工程大学航空工程学院, 西安 710038
³ 空军工程大学基础部,西安 710051

王壮壮(1994-),男,河南周口人,硕士研究生,研究方向:超燃冲压发动机再生冷却。

收稿日期: 2019-04-09

网络出版日期: 2025-05-30

基金资助

国防科研预研基金资助

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Influence of Buoyancy and Criterion Analysis of Aviation Kerosene in Rectangular Channel

WANG Zhuangzhuang ¹ ,
ZHOU Zhangwen ² ,
ZHANG Dengcheng ² ,
SU Yin ³

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¹ 1Aviation Maintenance NCO Academy, Air Force Engineering University, Henan Xinyang 464000, China
² Aeronautics Engineering College, Air Force Engineering University, Xi’an 710038, China
³ Department of Basic Sciences,Air Force Engineering University, Xi’an 710051, China

Received date: 2019-04-09

Online published: 2025-05-30

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摘要

研究了不同过载作用下,超临界压力RP-3航空煤油在矩形通道内的流动与传热特性,重点考察了浮升力对煤油流动换热的影响,并对浮升力判别准则进行了分析。研究表明:随着过载的增加,浮升力效应更加明显,通道内二次流速度增大,矩形通道内摩擦阻力增大,流动压力损失略有增加,加热侧壁面温度降低,传热恶化现象得到明显改善;选用的浮升力判别准则对矩形通道内航空煤油流动换热适用性较差。

关键词： 浮升力; RP-3煤油; 过载; 矩形通道; 判别准则

本文引用格式

王壮壮 , 周章文 , 张登成 , 粟银 . 矩形通道内航空煤油浮升力影响及判据分析[J]. 弹箭与制导学报, 2020 , 40(2) : 83 -88 . DOI: 10.15892/j.cnki.djzdxb.2020.02.021

Abstract

The flow and heat transfer characteristic of supercritical pressure RP-3 aviation kerosene in rectangular channel under the action of different overload were studied, and the influence of buoyancy on the kerosene flow and heat transfer was investigated in detail, and the criterion of buoyancy was analyzed. The research shows that with the increase of overload, the effect of buoyancy is more obvious, the secondary flow velocity in the channel increases, the shearing stresses in the rectangular channel increases, the flow pressure loss increases slightly, the heating side wall surface temperature decreases, and the heat transfer deterioration phenomenon is significantly improved. The criterions of buoyancy are not suitable for the flow and heat transfer of aviation kerosene in rectangular channel.

Key words： buoyancy; RP-3 kerosene; overload; secondary flow; criterion

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