| A commercial fluid dynamics code, FIDAP, has been modified to model Physical Vapor Transport (PVT) with the inclusion of microgravity and non-continuum effects such as thermal slip (creep). The code has been verified against existing data for transient PVT simulation, thermophoretic deposition, and thermal creep effects. FIDAP adequately captured transient transitions in flow structures and demonstrated the ability to predict dynamical events associated with oscillatory convection. However, there is still some concern toward the prediction of the flow field magnitude for reduced gravity cases. FIDAP's internal version of thermal (Soret) diffusion was corrected to include the mass fraction of solute. While improvements were obtained a fully satisfactory method of including this effect was not found. The effects of thermal slip were included by boundary condition subroutines.;The specific case of mercury iodide (HgI... |
