On the liquid film of nucleate boiling

摘要: Abstract By examining the motion of liquid surrounding a bubble close to heating surface accompanying ebullition and growth, it is argued for thin layer be formed fluiddynamically or thermally at base on during nucleate boiling, thickness inversely proportional square root Reynolds number based radius its growth rate times density ratio vapor liquid. In early stage film influential process only through associated increase in liquid-vapor interfacial area. advanced stage, with grows similar that without film, though superheat has less influence upon former. With highly thinner affected by thermal properties heater, being too high realized usual boiling water.