超临界压力煤油小尺寸管内流动阻力数值研究  

Numerical Study of Flow Resistance of Aviation Kerosene in Small-size Pipe at Supercritical Pressure

作　　者：卫海洋[1] 刘振德[1] 刘晓曦[1] 

机构地区：[1]中国航天科工集团第三研究院31所,北京100074

出　　处：《战术导弹技术》2013年第4期59-63,共5页Tactical Missile Technology

摘　　要：采用SSTκ-ω湍流模型对超临界压力下航空煤油(正十二烷)在小尺寸圆管内流动阻力进行数值研究。首先采用数值计算方法研究了超临界压力下水在内径为1 mm的小尺寸圆管内流动沿程阻力系数,并与试验数据进行了对比验证,证明了数值计算方法的准确性;然后对航空煤油分别在内径为1 mm,2 mm和3 mm的圆管中的沿程阻力系数进行了数值计算研究。结果表明,SSTκ-ω湍流模型可以较准确的计算小尺寸圆管内流动阻力情况;沿程阻力系数随雷诺数的增大而减小,并且沿程阻力系数随着圆形管道内径尺寸的减小而增大。The SST κ-ω turbulent model is used to calculate the flow resistance coefficient of the aviation kerosene（C12H26） in small-size pipe at supercritical pressure.At first,the flow resistance coefficient of the water in small-size pipe at supercritical pressure is investigated by numerical study,the inner diameter of the small-size pipe is 1mm.The numerical results with the test results is compared to check the accuracy of the turbulent model.And then,the flow resistance coefficient of the aviation kerosene in smallsize pipe at supercritical pressure is studied,the inner diameter of the small-size pipe is 1mm,2mm,3mm respectively.The result shows that the SST κ-ω turbulent model could calculate the flow resistance in small-size pipe,the flow resistance coefficient decreases with the increasing of the Reynolds number,and the flow resistance coefficient increases with the decreasing of the inner diameter of the small-size pipe.

关 键 词：超临界压力 小尺寸管道 流动阻力 航空煤油 

分 类 号：TJ763[兵器科学与技术—武器系统与运用工程]