Thermal Striping in Triple Jet Flow
A quantitative analysis of temperature fluctuations is necessary for monitoring the thermal striping phenomenon occurring in the core outlet region of the Fast Breeder Reactor (FBR). In the present study, the applicability of the temperature variance model and associated modeling for the triple jet flow has been evaluated. A system of three non isothermal parallel jets, experimented by Tokuhiro and Kimura (1999) and Nishimura et al. (2000) has been used to simulate the flow occurring at the core outlet region of the FBR. The velocity fields of the flow have been predicted using the Reynolds Stress Model. The performance of the temperature variance model was tested using different turbulent Prandtl numbers and different algebraic and transport models for scalar dissipation rate. The predictions were validated with the experimental results of the respective authors. The predicted values of mean temperature were found to be sensitive to turbulent Prandtl number. In this study turbulent Prandtl number was found to vary along the flow field as a function of turbulent Reynolds number.
Thermal Striping Temperature fluctuations Triple Jet Flow CFD hydrodynamics
A. W. Patwardhan A. Durve I. Banerjee G. Padmakumar G. Vaidyanathan
Department Of Chemical Engineering, Institute Of Chemical Technology, Matunga, Mumbai400019, India Experimental Thermal Hydraulics Section, Separation Technology and Hydraulics Division,Fast Reactor Experimental Thermal Hydraulics Section, Separation Technology and Hydraulics Division,Fast Reactor
国际会议
上海
英文
118-130
2010-10-10（万方平台首次上网日期，不代表论文的发表时间）