摘要
本文对毛细微槽中流体的轴向流动特性及干涸特性进行了研究,参考自适应理论建立了一维流动模型,与实验结果进行了对比.计算结果表明随着微槽槽宽的增大、槽深的减小,槽内流体的轴向干涸高度呈减小趋势,与实验数据吻合较好,说明计算方法具有一定可靠性.计算模型得到了弯月面曲率半径和液膜厚度沿轴长的变化曲线,为自适应理论做出有效的补充.
An axial flow theoretical model was established for analysis of the axial flow characteristics and the dry point of evaporating liquids in rectangular microgrooves. Comparison with experimental data shows that the axial dry out point decreases with the microgroove width increases or the groove depth decreases. Coincidence between the calculation results and the experimental data indicates that the theoretical model is applicable for axial flow in rectangular microgrooves. In addition, curvature radius of the meniscus and the liquid thickness were analyzed, which availably intensifies the accommodation theory.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2010年第10期1709-1712,共4页
Journal of Engineering Thermophysics
基金
国家自然科学基金青年科学基金项目资助(No.50806075)
关键词
毛细微槽
自适应理论
轴向流动特性
干涸高度
microgrooves
the accommodation theory
axial flow characteristics
dry out point
