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Abstract
Thermosolutal Marangoni and natural convection flows are studied in this paper. A time-splitting scheme combined with the fourth-order Runge-Kutta method and the finite element method is applied to solve the Navier-Stokes, energy, and species concentration equations. The results focus on the observation of flow evolution as well as temperature and concentration distributions. In regard to flaw pattern, the existence of the surface tension effect will alter the evolution of the flow field. In addition, the Marangoni effect enhances or decreases circulation strength, depending on whether the surface tension inducing circulation and buoyancy inducing circulation are in the same direction. Also surface tension flow severely influences the heal heat and mass transfer rates near the top free surface.
Notes
Address correspondence to Tswen-Chyuan Jue, Department of Vehicle Engineering, National Huwei Institute of Technology, 64, Wunhua Road, Huwei, Yunlin, Taiwan 63208, R.O.C.