中文摘要：

改变以往以实验为主的研究思路,尝试从唯象理论角度对蒸发速率分析与定量计算.在无风条件下导出了蒸发速率的基本公式,分析结果显示最主要的影响因素是温度与湿度,且蒸发速率在温度一定时与湿度存在线性关系.与道尔顿蒸发模型的比较,得到了道尔顿模型参数的物理含义.在非线性区和引入风速两种情况下,计算出无风条件下蒸发唯象系数的具体表达式.非线性模型结果与实验结果较好吻合;风速模型与实验数据经比较后也显示一定的合理性.

英文摘要：

Changing the previous research technique relying mainly on experiment,we attempt to analyze and calculate quantificationally the evaporation rate from the perspective of phenomenological theory. The basic formula of evaporation rate is deduced under the condition of no wind,and the result has shown that the main influence factor are temperature and humidity; the humidity and evaporation rate are in a certain linear relationship with certain temperature. Comparing with Dalton evaporation model,the physical meaning of the Dalton model parameters is obtained. In the case of nonlinear area,the wind speed model is generalized,the concrete expression of evaporation phenomenological coefficient is calculated under the condition of no wind. The nonlinear model coincides with the experimental results preferably. It also shows certain rationality after comparing the wind speed model with the experimental data.