The stability of thermocapillary convection in a fluid layer has been experimentally and numerically analyzed by many researchers.While the interfacial flow with evaporation,is absent of comprehensive understanding.Recently,C.A.Ward found the temperature discontinuity at an evaporating liquid interface,which couldn’t explained by classical theory.In our work,we measured the temperature profiles at the evaporating liquid surface of a horizontal fluid layer,and experimental studied the co-influence of evaporation effect and thermocapillary convection on the temperature discontinuity at the evaporating interface.
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