| 爆震管壁面热负荷实验 |
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| 引用本文： | 宫继双,范育新,王家骅,刘鸿,张靖周.爆震管壁面热负荷实验[J].航空动力学报,2009,24(9):1952-1958. |
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| 作者姓名： | 宫继双 范育新 王家骅 刘鸿 张靖周 |
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| 作者单位： | 1. 南京航空航天大学,能源与动力学院,南京,210016
2. 南京航空航天大学,能源与动力学院,南京,210016;江苏工业学院机械工程系,常州,213016 |
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| 摘 要： | 在一台内径61mm、长度1 140mm的气动阀式脉冲爆震发动机(PDE)上,进行了爆震管热负荷的测量计算,主要采用了两种换热模型:一是自然对流和热辐射模型;二是强迫对流模型.在两种方式下,爆震管的热负荷随频率的变化关系基本相同,即随频率升高而热负荷增大,但频率增加两倍热负荷增加却不止两倍.此外,在方式二的情况下,还得到煤油蒸发率随频率的变化关系,为PDE蒸发器设计提供参考.
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| 关 键 词： | 脉冲爆震发动机(PDE) 热负荷 爆震管 蒸发 |
| 收稿时间： | 9/4/2008 12:00:00 AM |
| 修稿时间： | 2009/5/20 0:00:00 |
Experimental study on heat load of detonation tube |
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| GONG Ji-shuang,FAN Yu-xin,WANG Jia-hu,LIU Hong and ZHANG Jing-zhou.Experimental study on heat load of detonation tube[J].Journal of Aerospace Power,2009,24(9):1952-1958. |
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| Authors: | GONG Ji-shuang FAN Yu-xin WANG Jia-hu LIU Hong and ZHANG Jing-zhou |
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| Institution: | College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;Department of Mechanical Engineering, Jiangsu Polytechnic University, Changzhou 213016, China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | A pulse detonation engine(PDE) with diameter and length of 61mm and 1140mm respectively,was used to get the heat loads of detonation tubes which were designed into two types.The first one is that its heat transfer was controlled by natural convection and thermal radiation,and the other one was mainly influenced by forced convection.The same relations between heat load and working frequency were acquired in two conditions,namely,the heat load increased along with the increase of working frequency.However,with the doubling of the frequency from 20Hz to 40Hz(or from 25Hz to 50Hz) of the detonation tube,the heat load increased more than 100%.In addition,the vaporizing rate of kerosene was got at different frequencies,providing a reference for the design of PDE evaporator. |
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| Keywords: | pulse detonation engine(PDE) heat load detonation tube evaporation |
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