年間 18 号発行
ISSN 印刷: 1064-2285
ISSN オンライン: 2162-6561
Indexed in
Calculation of Hydrodynamics and Heat Transfer in a Transient Separating Bubble on a Plane Surface
要約
The results of numerical investigation of flow and heat transfer in a transient separating bubble formed on the wall of a plane channel, through an opposite wall of which liquid is sucked-off, are presented. Calculations are made within a framework of two-dimensional Reynolds equations by means of three different models of turbulence and by the method of direct numerical simulation. In both cases temperature is considered as a passive scalar. It is shown that dynamic characteristics of the considered flow can be calculated within the framework of Reynolds equations rather accurately, whereas the corresponding data on intensity of heat transfer on a wall are underestimated by all the considered models of turbulence by a factor of two.