期刊
MICROGRAVITY SCIENCE AND TECHNOLOGY
卷 24, 期 4, 页码 255-265出版社
SPRINGER
DOI: 10.1007/s12217-012-9308-7
关键词
Nucleate boiling; Numerical simulation; Conjugate conduction
资金
- National Aeronautics and Space Administration (NASA) under Flight Experiment Program
The present work describes the response of a heated solid surface during nucleation, growth and departure of a single bubble. Two dimensional, axisymmetric, finite difference schemes are used to solve the governing equations in the liquid, vapor and solid phases. The interface between liquid and vapor phases is tracked by a level set method. An iterative procedure is used at the interface between the solid and fluid phases in order to match temperatures and heat fluxes. Time and space invariant heat fluxes are supplied at the solid base and calculations are carried out for solids with different thermo-physical properties and thicknesses. Near the three-phase contact line, temperatures in the solid are observed to fluctuate significantly over short periods as the bubble base first expands outwards then contracts inwards before departure. The results show that waiting and growth periods can be related directly to wall superheat. The functional relationship between waiting time and wall superheat is found to agree well with the correlations based on experimental data reported in the literature.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据