纵向涡流 meaning in English

longitudinal turbulence

The numerical solution shows that the optimal velocity field for laminar convective heat transfer in tubes is multi - longitudinal vortex flow
数值求解表明，管内层流对流换热的最优速度场为多纵向涡流态。
We put out a kind of new - style longitudinal vortex generater - columner longitudinal vortex generater cut by slop on the base of summing up the work which got dy the learners at the past
在总结他人成果的基础上，提出了一种新型的纵向涡流发生元? ?斜切式纵向涡流发生器。
The experimental and numerical studies on the two enhanced tubes are performed . the strong multi - longitudinal vortex flow in the aea - tube is induced by alternating change of the elliptical cross - section , and for the ddir - tube , the strong multi - longitudinal vortex flow is
交叉缩放椭圆管是通过椭圆截面的交叉变化诱导产生强烈的二次流和多纵向涡流，而不连续双斜向内肋管则是通过不连续的双斜向内肋对的作用形成强烈的多纵向涡。