摘要
研究了冰围绕压缩比 Ｊ＝ １／２，２ 水平椭圆柱的压力熔化．求得边界层厚度、作用力与椭圆柱下降速度的关系式．分析表明：（１） Ｊ＝ １／２，２ 的椭圆柱，边界层厚度随圆周角变化，且变化规律不同．（２）同一椭圆柱，以 Ｊ＝ ２ 方式熔化的速度为 Ｊ＝ １／２ 熔化速度的 ４ 倍，并大于相同面积的圆柱熔化速度．
The pressure melting of a block ice around the moving elliptical cylinders with J =1/2 and 2 was analyzed.The film thickness and the relationship between the force applied and the speed with which the elliptical cylinders migrate into the ice block were obtained by calculating.It was found that:(1)the film thickness varies with the angular position,and is different trend for J =1/2,2.(2)For the same elliptical cylinder,the melting speed for J =1/2 is 4 times as that for J =1/2,and larger than that for cylinder with the same cross area.
出处
《科技通报》
1999年第5期347-349,共3页
Bulletin of Science and Technology
基金
中国博士后科学基金
