A new model has been developed to predict the capillary limit of axial-grooved heat pipe.In the model the concepts of liquid saturation or liquid fraction of the cross-sectional area of groove,the modified relative pe...A new model has been developed to predict the capillary limit of axial-grooved heat pipe.In the model the concepts of liquid saturation or liquid fraction of the cross-sectional area of groove,the modified relative permeability,absolute permeability of groove and Leverrt’s function are used.The Leverrt’s function is well represented by the function f（s）=(1/51/2)（1/s-1）0.175.In the model the effects of gravitational force,capillary force and viscous force are considered.The calculated results are in good agreement with existing experimental data reported in the literature.展开更多
基金supported by the National Science Foundation of China
文摘A new model has been developed to predict the capillary limit of axial-grooved heat pipe.In the model the concepts of liquid saturation or liquid fraction of the cross-sectional area of groove,the modified relative permeability,absolute permeability of groove and Leverrt’s function are used.The Leverrt’s function is well represented by the function f（s）=(1/51/2)（1/s-1）0.175.In the model the effects of gravitational force,capillary force and viscous force are considered.The calculated results are in good agreement with existing experimental data reported in the literature.
