通风干湿表检定过程的湿度场模拟及验证

Simulation and Verification of Humidity Field in Verification of Ventilation Psychrometer

受到温湿度标准箱的尺寸和结构限制,通风干湿表在检定过程中会对湿度场产生较大影响。本文建立了等比例的三维稳态计算模型,运用组分传输模型和SIMPLE算法对电动通风干温表检定过程中的湿度场进行数值模拟,分析湿度场分布特点,并通过试验验证了模拟结果的科学性和准确性。

Restricted by the size and structure of the temperature and humidity standard box,the ventilation psychrometer will have a greater impact on the humidity field in the verification process.A three-dimensional steady-state calculation model with equal proportion was established.The component transfer model and SIMPLE algorithm were used to simulate the humidity field in the verification process.The distribution characteristics of the humidity field were analyzed,and the scientificity and accuracy of the simulation results were verified by experiments.