通过定性分析和计算机模拟发现 :在水平网络火灾中 ,非角联旁侧分支也能发生风流逆转 ,引起逆转的动力是与该分支并联但与着火分支串联的分支中的冷抽力 .为加深对水平网络中非角联旁侧支路风流逆转机理的认识 ,对运动方程中对流项的沿程积分与冷抽力的联系与区别进行了讨论 Through qualitative analysis and computer simulation, it is found that in the horizontal network fire, the wind flow reversal can occur in the non-coterminous side branches, and the motivation for the reversal is the cold pumping force in the branch parallel to the branch but with the fire branch. The understanding of the mechanism of the reversal of wind flow in the non-coplanar side branches in a horizontal network is discussed, and the connection and difference between the integral of the convection term in the equation of motion and the cold drawn force are discussed