Environmental crosswind changes the aerodynamic pattern inside a cooling tower, destroys uniform and axisymmetric distribution of circulate at its inlet and outlet, and should degrade fill zone efficiency. In this paper, the impact of movement rotation within the over-shower zone of a natural draft cooling tower (NDCT) on the aerodynamic interplay with crosswind is studied numerically. The 3D geometry of an precise NDCT and three fashions of induced rotation velocity fields are utilized for simulation.
It’s demonstrated that circulate rotation ends in homogenization of the aerodynamic subject within the over-shower zone. The inhomogeneity of the velocity discipline in the outlet cross part decreases linearly with rotation intensification. The effect of essential stream switching beneath strong wind conditions is discovered. It’s proven that even moderate move rotation eliminates this effect.