Share

FREEZING OF WATER-SATURATED POROUS MEDIA IN THE PRESENCE OF NATURAL CONVECTION: EXPERIMENTS AND ANALYSIS.

Author(s) : CHELLAIAH S., VISKANTA R.

Type of article: Article

Summary

THE EFFECTS OF LIQUID SUPERHEAT AND IMPOSED TEMPERATURE DIFFERENCE WERE INVESTIGATED. WHEN THE SUPERHEAT ACROSS THE LIQUID REGION WAS SMALL THE FLOW IN THE POROUS MEDIA WAS WEAK, AND THE INTERFACE WAS ALMOST PLANAR. FOR LARGER SUPERHEATS, NATURAL CONVECTION FLOW AND THE SOLIDIFICATION FRONT SHAPE AND VELOCITY WERE FOUND TO DEPEND ON THE IMPOSED TEMPERATURE AND THE PERMEABILITY OF THE POROUS MEDIUM. THE MEASURED TEMPERATURE DISTRIBUTIONS WERE COMPARED WITH PREDICTIONS OF NUMERICAL MODEL BASED ON VOLUMETRIC AVERAGING OF THE MACROSCOPIC TRANSPORT EQUATIONS, WITH PHASE CHANGE ASSUMED TO OCCUR VOLUMETRICALLY OVER A SMALL TEMPERATURE RANGE.

Details

  • Original title: FREEZING OF WATER-SATURATED POROUS MEDIA IN THE PRESENCE OF NATURAL CONVECTION: EXPERIMENTS AND ANALYSIS.
  • Record ID : 1990-0554
  • Languages: English
  • Source: J. Heat Transf. - vol. 111 - n. 2
  • Publication date: 1989
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles in this issue (10)
See the source

Indexing