摘要
在分析溶液中大分子运动状态的基础上,对减阻液非牛顿层流的速度波动成因提出了理论模型,并建立了波动统计参数的基本方程。根据极限减阻状态的实验资料,对方程进行了求解。所得结果对于从亚微观层次解释减阻机理有实际意义。
On the basis of analysing dynamical behavior of macromolecules, a theoretical model is proposed for velocity fluctuation in non-Newtonian laminar flow of drag reducing solutions and basic equations for the model are established. The solution of the equations for maximum asymptote of drag reduction is obtained with the help of experimental data. The results are meaningful for explaining the mechanism of drag reduction from submicroscopic level.
基金
国家自然科学基金
关键词
高分子减阻
非牛顿层流
极限减阻
速度波动
high molecular drag reduction
non-Newtonian laminar flow
maximum asymptote of drag reduction
velocity fluctuation
