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S18 Processos Mecânico-Metalúrgicos |
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Titulo:
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SIMULAÇÃO NUMÉRICA DA SOLIDIFICAÇÃO DENDRÍTICA DE UMA SUBSTÂNCIA BINÁRIO EM MUDANÇA DE FASE SÓLIDO-LÍQUIDO EM CAVIDADE ANULAR VERTICAL
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Resumo :
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IN THE PRESENT STUDY IT IS NUMERICALLY INVESTIGATED THE TRANSIENT SOLIDIFICATION OF A SALT SOLUTION OF HIPOEUTETIC INITIAL COMPOSITION. THE PROCESS OCCURS IN A IMPERMEABLE VERTICAL ANNULAR CAVITY. THE PROBLEM WAS SOLVED BI-DIMENSIONALLY, UTILIZING THE FINITE VOLUME METHOD AND, ANALYTICALLY, IT WAS APPLIED THE VOLUME AVERAGED TECHNIQUE TO THE CONSERVATION EQUATIONS. THE RESULTS SHOW, FOR SPECIFIC TIMES, THE BEHAVIOR OF STREAMLINES, ISOTHERMS, LIQUID ISOCOMPOSITION DISTRIBUTIONS AND PROGRESSING OF SOLIDIFICATION FRONTS. BESIDES, IT IS EVALUATED THE HEAT TRANSFER AT THE COLD WALL OF THE CAVITY. |
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Autores :
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Braga, Sérgio Leal
Stampa, Cleyton Senior
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Trabalho Completo :
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