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本文应用湍流流体力学理论推导了城市街道汽车排放微尺度湍流扩散模型,建立了运动方程及扩散方程的交错网格与变网格的有限容积法离散方程,并由此编制了全部计算机程序,为解决复杂下垫结构地面源污染物扩散过程的建模问题提供了途径。
In this paper, the turbulent flow dynamics theory is used to derive the micro-scale turbulence diffusion model of urban street vehicle emissions. The staggered grid and the finite volume method of discrete equations of motion equations and diffusion equations are established, and all the computer programs are compiled. It provides a way to solve the problem of modeling the diffusion of surface-sourced pollutants in complex underlying structures.