Permeability for flow parallel to primary dendrite arms

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103 Scopus citations


The permeability for the flow of interdendritic liquid parallel to primary dendrite arms in columnar structures was calculated using the boundary element method for fully developed flow. The permeability was calculated because when the volume fraction of liquid (gL)exceeds approximately 0.60 -0.65, experiments fail. The calculated results, based on the microstructures of directionally solidified alloys, agreed with analytical results for flow parallel to circular cylinders arranged in square and triangular arrays. It appears that there is a transition in the behavior of the permeability at gL ≈ 0.65.

Original languageEnglish (US)
Pages (from-to)97-105
Number of pages9
JournalMaterials Science and Engineering A
Issue number1
StatePublished - Apr 15 1992

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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