When the guiding air curtain had the horizontal velocity, which opposites to the direction of the fluent field below the wind exit, then the droplet horizontal velocity would be reduced to improve the droplets deposition, thus drift could be lessened.

• 若风幕具有与其下方流场反方向的水平分速度,则可减慢雾滴水平方向运动速度,从而使雾滴有机会沉积下来,减小雾滴飘移的潜能;