Adv Multiphase v63 07a Solidification

   Model in FLUENT Model in FLUENT  Modeling Course Modeling Course © 2007 ANSYS, Inc All rights reserved ANSYS, Inc Proprietary  Fluent User Services Centerwwwfluentuserscom Advanced FLUENT TrainingMultiphaseSept 2007 Solidification  FLUENT provides the following capabilities for modeling solidification and melting:  Calculation of liuid-solid solidification/meltin in ure metals as well as in binary alloys  Modeling of continuous casting processes (ie, pulling of solid material out of the domain  Modeling of the thermal contact resistance between solidified material and walls (eg, due to the presence of an air gap)   Postprocessing of quantities related to solidification/melting (eg liquid fraction and pull velocities) 7-2 © 2007 ANSYS, Inc All rights reserved ANSYS, Inc Proprietary  Fluent User Services Centerwwwfluentuserscom Advanced FLUENT TrainingMultiphaseSept 2007 Limitation  e socatonmetng moe can e use ony wt te segregate solver; it is not available with the coupled solvers  The solidification/melting model cannot be used for compressible ows  Of the general multiphase models (VOF, mixture, and Eulerian), only the VOF model can be used with the solidification/melting model  With the exception of species diffusivities, you cannot specify material  properties separately for the solid and liquid materials  When using the solidification/melting model in conjunction with modeling species transport with reactions, there is no mechanism to restrict the reactions to only the liquid region; ie, the reactions are solved everywhere 7-3 © 2007 ANSYS, Inc All rights reserved ANSYS, Inc Proprietary