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本文研究了射流气体撞壁后在放有条形障碍物(以下称之为限流沿)的壁面上的发展过程．实验发现：在限流沿高度合适的情况下，射流气体与限流沿相撞后会脱离壁面形成空间流动。其中，限流沿高度、射流入射角度是决定射流气体撞击限流沿后的发展过程的重要参数，限流沿的存在成功地防止了近壁处的浓混合气层的形成．
In this paper, the development of the jet gas on the wall with bar-shaped obstacles (hereinafter referred to as the “current-limiting edge”) is studied. The experimental results show that when the flow rate is along the appropriate height, the jet gas collides with the flow restrictor to separate from the wall to form a space flow. Among them, the current-limiting height along the jet and the jet incident angle are the important parameters that determine the development process of the jet gas after impacting the current-limiting edge. The existence of the current-limiting edge successfully prevents the formation of the dense gas-bearing layer near the wall.