Based on turbulent kinetic energy and the rate of turbulent dissipation transport equations, the equation to calculate variance of the refractivity fluctuation is modeled.
根据湍流的动能和动能耗散率输运方程，建立了折射率起伏方差的计算模型。
According to the distribution of the turbulence kinetic energy and turbulence dissipation rate in the whole flow field, the mechanism of energy dissipation of stepped spillway is analyzed.
本文首次从紊动能和紊动耗散率在整个流场的变化规律出发，分析了阶梯的消能机理。
An analytical expression of dissipation integral for kinetic energy integral equation is derived by two-layer eddy viscosity turbulence model and the power law of the velocity profile.
采用两层涡粘性模型和速度剖面的指数律导出机械能方程的耗散积分解析表示式。
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