Momentum equation for dendritic solidification

P. J. Nandapurkar, David R Poirier, J. C. Heinrich

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

For analyzing dendritic solidification, convection in the mushy zone is based on a momentum equation for a porous medium with a spatially varying fraction of liquid. Results are compared with those obtained with a less complete momentum equation. Calculations are done for directional solidification, with isotherms and isoconcentrates that move with a constant velocity. Thermosolutal convection as a function of time is studied by perturbing the solutal field. The total kinetic energy, the nature of the convection cells, and the isoconcentrates are significantly different for the two models. Hence the complete form of the momentum equation should be used.

Original languageEnglish (US)
Pages (from-to)297-311
Number of pages15
JournalNumerical Heat Transfer; Part A: Applications
Volume19
Issue number3
StatePublished - Apr 1991

Fingerprint

Solidification
solidification
Convection
Momentum
momentum
convection
mushy zones
convection cells
Kinetic energy
Porous Media
Isotherms
Porous materials
isotherms
kinetic energy
Liquid
Cell
Liquids
liquids
Model

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Physical and Theoretical Chemistry
  • Computational Mechanics
  • Mechanics of Materials
  • Safety, Risk, Reliability and Quality

Cite this

Momentum equation for dendritic solidification. / Nandapurkar, P. J.; Poirier, David R; Heinrich, J. C.

In: Numerical Heat Transfer; Part A: Applications, Vol. 19, No. 3, 04.1991, p. 297-311.

Research output: Contribution to journalArticle

Nandapurkar, PJ, Poirier, DR & Heinrich, JC 1991, 'Momentum equation for dendritic solidification', Numerical Heat Transfer; Part A: Applications, vol. 19, no. 3, pp. 297-311.
Nandapurkar, P. J. ; Poirier, David R ; Heinrich, J. C. / Momentum equation for dendritic solidification. In: Numerical Heat Transfer; Part A: Applications. 1991 ; Vol. 19, No. 3. pp. 297-311.
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