摘要
该文分析了应用相似理论研究枪炮膛内对流换热的可能性,指出了对流换热准则方程由努塞尔数、雷诺数和普朗特数组成。根据实测的膛壁温度和膛压可以整理出准则方程的具体形式;利用Φ14.5 mm弹道试验枪的试验结果说明了整理准则方程的方法,给出了计算结果和曲线。
The paper deals with the possibility of studying in-bore convec-tive heat transfer by the use of similarity theory. It points out that the criteri-onal equation of convective heat transfer consists of Nusselt number,Reynoldsnumber and Prandtl number. The criterional equation can be built by gunpressure and inside wall temperature curves. The experimental results of Φ14. 5 mm gun can be used to show the method of building the criterional equa-tion. And then the calculated deta and curves are given.
关键词
对流传热
内弹道学
枪炮膛
convective heat transfer
similarity theory
similarity rule
interior ballistics
test result
criterional equation
