摘要
运用紊流随机理论研究了粘弹性流体紊流边界层运动的基本规律,导出了边界层内、外区及粘性底层各区统一的时均流速分布计算式;纵、横向脉动流速强度分布和能谱密度计算式。以现有实测资料对这些计算式进行的验证表明,计算结果与试验资料符合甚好。
This paper deals with the fundamental laws fo turblent structure of polymer drag-reducing flow on boundary layer.A series of formulas are presented in this paper about the mean velocity profile,the intensity of velocity fluctuation and energy spectrum.The experimental data are in good agreement with these formulas.
