Determination of the evaporation coefficient of water based on molecular gas dynamics

We have been developing an experimental method for determining the evaporation coefficient of water using a sound resonance phenomenon with the help of the theory of molecular gas dynamics. The evaporation coefficient is one of the parameters contained in the kinetic boundary condition. The objective of the present study is to determine the evaporation coefficient by the experiment of sound resonance phenomenon. By comparing the pressure amplitude obtained from the experiments with the theoretical results based on molecular gas dynamics, we demonstrate that the evaporation coefficient of water is approximately 1.0 near 300 K.We have been developing an experimental method for determining the evaporation coefficient of water using a sound resonance phenomenon with the help of the theory of molecular gas dynamics. The evaporation coefficient is one of the parameters contained in the kinetic boundary condition. The objective of the present study is to determine the evaporation coefficient by the experiment of sound resonance phenomenon. By comparing the pressure amplitude obtained from the experiments with the theoretical results based on molecular gas dynamics, we demonstrate that the evaporation coefficient of water is approximately 1.0 near 300 K.