Heat-Flux Interface Transport on One-Dimensional Turbulence Model for Stratified Flow of Thermal Effluent

Abstract

A condenser cooling sea water discharged from coastal nuclear power plant has been diffused into the sea area at an outlet temperature-rise of the order of 7 °C in thermally-stratified turbulent shear flow. The purpose of this research is that the vertical thermal diffusion phenomenon and heat-flux interface stability mechanism in the thermal effluent is analyzed based on one-dimensional heat-flux turbulence models. An important applied hydrodynamic formula that is the relation between a local gradient Richardson number R_i and a dimensionless buoyancy parameter B_p is formulated, and it is seen to keep the buoyancy parameter B_p →∞ in the case of flow region of R_i ≥0.612. It is principal to perform the protection of environment.