论文部分内容阅读
给出了描述温棚系统中传热问题的数学物理模型及计算方法，并进行了实验研究。模型中考虑了气象环境参数、土壤的热湿物性以及塑料棚膜的太阳光学性质和热辐射特性，可预报温棚内空气和土壤中的温度和含混量的分布及变化规律。模型的数值模拟结果与实测值在数值和变化趋势上符合得较好，从而表明模型的正确性与可靠性。
A mathematic and physical model describing the heat transfer problem in the greenhouse system is given and its calculation method is also studied. The model takes into account of the meteorological environment parameters, the thermal and physical properties of the soil, the solar optical properties and the thermal radiation characteristics of the plastic greenhouse film, and can predict the distribution and variation of the temperature and the content of air and soil in the greenhouse. The numerical simulation results of the model agree well with the measured values in numerical and trend of change, which shows the correctness and reliability of the model.