... simulation Natural convection Buongiorno Model Nanofluid Microrotation x ∼ , y ∼ = Spatial coordinates; X ∼ , Y ∼ = Dimensionless Cartesian coordinates; u*, v* = velocity profiles in x − and y − direction...

... evolution of the concentration of a tracer at the outlet of a single strand bare tundish. The numerical prediction of the tracer concentration has been made with three different turbulence models; (a standard k‐ε, a k‐ε RNG and a Low Re number Lam‐Bremhorst model) which...

...E. Theuns; J. Vierendeels; P. Vandevelde This paper describes a one dimensional moving grid model for the pyrolysis of charring materials. In the model, the solid is divided by a pyrolysis front into a char and a virgin layer. Only when the virgin material reaches a critical temperature it starts...

... resolution near solid surface and an appropriate near‐wall model has been shown to simulate much of the large‐scale unsteadiness and some of the turbulent motion for flows with and without separation. Although the results with unadjusted model constants do not show an overwhelming improvement over a standard...

... stretching velocity and the study of heat transfer (Chen and Char, 1988; Dutta et al., 1985; Gupta and Gupta, 1977). © MCB UP Limited 2001 Non‐Newtonian fluids Boundary layers Model Porous media g acceleration due to gravity ν kinematic viscosity...

...Yanhu Guo; Guangbin He; Andrew T. Hsu Proposes the use of genetic algorithms to assist the development of turbulence models. A variable Schmidt number model for scalar mixing in jet‐in‐crossflows was developed through theoretical analyses. A uniform micro genetic algorithm is implemented...