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NUMERICAL CALCULATION OF BUBBLE GROWTH IN NUCLEATE BOILING FROM INCEPTION THROUGH DEPARTURE.

Author(s) : LEE R. C., NYDAHL J. E.

Type of article: Article

Summary

A COMPREHENSIVE MODEL WAS DEVELOPED THAT PERMITS SOME ACCURATE INSIGHTS INTO THIS PROBLEM. AN ESSENTIAL FEATURE INVOLVED THE NUMERICAL MAPPING OF THE COMPLICATED GEOMETRY TO A PLANE WHERE THE BUBBLE AND WALL BOUNDARIES LIE ALONG CONSTANT COORDINATE LINES. THE RESULTS SHOW THAT MICROLAYER EVAPORATION ACCOUNTS FOR 87% OFTHE ENHANCED WALL HEAT TRANSFER DURING SATURATED BOILING OF WATER AT 1 ATM AND 8.5 K WALL SUPERHEAT. IN CONTRAST, ENHANCED CONVECTIVE EFFECTS WERE ESSENTIALLY NON-EXISTENT DURING GROWTH AND MINIMAL FOLLOWING DEPARTURE.

Details

  • Original title: NUMERICAL CALCULATION OF BUBBLE GROWTH IN NUCLEATE BOILING FROM INCEPTION THROUGH DEPARTURE.
  • Record ID : 1990-0547
  • 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.

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