An experimental study on heat transfer of water-air foam was conducted under forced convection conditions. A cylindrical heating surface whose temperature was lower than 373K, i.e., less than the boiling temperature of water, was employed. Heat transfer coefficient was obtained for various combinations of foam density, foam velocity, and temperature of the heating surface. The coefficients were found to increase with increasing the density and the velocity of the foam. Abrupt increase in the coefficient was also obtained as the temperature of the heater rises to 373K. A numerical analysis based on a lubricated plug flow model shows that one of the reason of the increase in the coefficient is latent heat transfer due to vapor diffusion in void space in the foam.
雑誌名
Proceedings of the 4th JSME-KSME Thermal Engineering Conference
巻
3
ページ
45 - 50
発行年
2000-10
出版者
The Japan Society of Mechanical Engineers
論文ID（NAID）
http://ci.nii.ac.jp/naid/110002497399
日本十進分類法
530
書誌レコードID
AA11901420
権利
Copyright 2000 The Japan Society of Mechanical Engineers(JSME). This article may be downloaded for personal use only. Any other use requires prior permission of the author and the JSME. The fulltext is duplicated from CiNii under permission from the JSME.
HEAT TRANSFER CHARACTERISTICS OF FOAM FLOW AT TEMPERATURE UP TO 373K OF HEATING SURFACE
prAJTEC2003_3_45.pdf
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