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A three-dimensional,first order turbulence closure,thermal diffusion model is described inthis paper.The governing equations consist of an equation of continuity,three components of momentum,conservation equations for salt,temperature and subgridscale energy,and an equation of state.In the mod-el,according to the hypothesis of Kolmogorov and Prandtl,the viscosity coefficient of turbulent flow ofhomogeneous fluid is related to the local turbulent energy,and the horizontal and vertical exchangecoefficients of mass,heat and momentum are computed with the introduction of subgridscale turbulenceenergy.The governing equations are solved by finite difference techniques.This model is applied to theJiaozhou bay to predict thermal pollution by the Huangdao power plant.An instantaneous tidal currentfield is computed,then the distribution of temperature increment is predicted,and finally the effect of windstress on thermal discharge is discussed.
A three-dimensional, first order turbulence closure is described in the governing equations consisting of an equation of continuity, three components of momentum, conservation equations for salt, temperature and subgridscale energy, and an equation of state. the mod-el, according to the hypothesis of Kolmogorov and Prandtl, the viscosity coefficient of turbulent flow ofhomogeneous fluid is related to the local turbulent energy, and the horizontal and vertical exchangecoefficients of mass, heat and momentum are computed with the introduction of subgridscale turbulenceenergy .The governing equations are solved by finite difference techniques. This model is applied to theJiaozhou bay to predict thermal pollution by the Huangdao power plant. An instantaneous tidal currentfield is computed, then the distribution of temperature increment is predicted, and finally the effect of windstress on thermal discharge is discussed.