Abstract
A hydrodynamic model of crystal growth from solution under microgravity is analyzed. In this model, a cuboidal container is filled with the parent solution; a flat plate of seed crystal is chosen to form one wall of the container; its opposite wall is made of the material of solute source; the temperatures and the solute concentrations at the surfaces of these two walls are kept constant. The Navier-Stokes equation, the equation of convection-diffusion and the equation of heat transfer are numerically solved to calculate the flow field, solute transport, distribution of solute concentration and of temperature, growth rate of crystal and to study the influence of some geometrical and physical parameters and gravity level on them. The law of similarity of fluid mechanics is discussed. It is explained how to choose suitable geometrical and physical parameters and conditions of crystal growth to favor the growth of perfect crystal.
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