研究了流化数、射流初始速度、颗粒平均粒径及静态床层高度对射流脉动特性的影响。
Two-phase velocity fields in a round turbulent jet with Reynolds number 8500 were measured by phase Doppler Particle Analyzer (PDPA).采用相多普勒颗粒分析仪(PDPA)测量了雷诺数为8500的两相圆湍射流速度场,研究了两种大粒径颗粒对湍流的调制作用。
The reason of the strengthening of severe wind belt of low layer is due to the dynamicforce effect of upper layer jet and the transport effect of air particle of low latitude.低空强风带的加强一方面由于高空急流的动力强迫作用,另一方面来源于低纬空气质点对强风动量的输送作用。