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A MATHEMATICAL MODEL OF CONDENSATION HEAT AND MASS TRANSFER TO A MOVING DROPLET IN ITS OWN VAPOUR.

Author(s) : CHUNG J. N., CHANG T. H.

Type of article: Article

Summary

A KARMAN-POHLHANSEN TYPE OF INTEGRAL APPROACH WAS ADOPTED FOR THE SOLUTION OF VAPOR-PHASE BOUNDARY LAYER EQUATIONS. THE DIFFUSION-DOMINATED INTERNAL CORE WAS SOLVED USING A FINITE DIFFERENCE NUMERICAL SCHEME. THE RATE-CONTROLLING MECHANISM OF PURE VAPOR CONDENSING ON A DROPLET WAS FOUND IN THE THERMAL CORE REGION OF THE LIQUID PHASE WHERE THE STREAMLINES CORRESPOND TO THE ISOTHERMS AND DIFFUSION IS THE PRIMARY TRANSPORT MECHANISM. THE TOTAL RATE OF HEAT TRANSFER IS FOUND TO BE INVERSELY PROPORTIONAL TO THE DROPLET RADIUS. THE CONDENSATION VELOCITY AT THE VAPOR-LIQUID INTERFACE REDUCES THE BOUNDARY LAYER THICKNESS AND MOVES THE SEPARATION POINT TOWARD THE REAR STAGNATION POINT.

Details

  • Original title: A MATHEMATICAL MODEL OF CONDENSATION HEAT AND MASS TRANSFER TO A MOVING DROPLET IN ITS OWN VAPOUR.
  • Record ID : 1985-0524
  • Languages: English
  • Source: J. Heat Transf. - vol. 106 - n. 2
  • Publication date: 1984/05
  • Document available for consultation in the library of the IIR headquarters only.

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