Calculation of pressure in a mushy zone

✍ Scribed by J. C. Heinrich; E. McBride

• Book ID: 101233087
• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 161 KB
• Volume: 47
• Category: Article
• ISSN: 0029-5981
• DOI: 10.1002/(sici)1097-0207(20000110/30)47:1/3<735::aid-nme791>3.0.co;2-j

✦ Synopsis

The di$culties associated with the correct approximation of the pressure in numerical simulations of directional solidi"cation are examined. The suitability of methods available to calculate pressure in the presence of a mushy zone where #ow induced by density di!erences due to change of phase, or &shrinkage', occurs is discussed, and a viable method of calculation based on the penalty function formulation is proposed. Results of calculations for #ows under reduced and normal gravity environments are presented.