A vertical two dimensional model for thermo stratified flows is proposed, which solves the velocity and pressure by a fractional step method, and Large Eddy Simulation model is used to calculate the Reynolds stress and turbulent diffusion effect.

• 摘要建立立面二维水动力学与水温耦合模型，用分步法求解流速和压力，采用大涡模型计算紊动应力和紊动扩散。