月球表面温度的数值模拟

Numerical Simulation of the Temperature of Lunar Surface

通过月球天文计算,建立了以太阳辐射、月球辐射和太阳反照参与的月球表面辐射系统模型,并考虑了月球表面从周围通过导热传入的热量,从而可以模拟任意时刻不同经纬度坐标的月球表面温度。模拟结果表明,随着纬度升高,月球表面太阳辐射强度降低,月球表面的温度也随之降低。月面温度变化周期一般为约29天;受月球的黄赤夹角影响,在纬度为90°时,温度变化周期约为178天。建立的月球表面温度模型,与较缺稀的月球实测资料进行了比较,表明本模型可较准确的模拟任意时刻不同经纬度坐标的月球表面温度,为探月设备的热设计与热控制提供研究基础。

In this paper,the model of radiation with solar radiation,lunar radiation and solar albedo is founded based on astronomical algorithms of the lunar orbit,heat of conduction from circumambience to surface is simulated by the linear fit,and the temperature of lunar surface with different longitude and latitude coordinates can be numerically simulated.Results show that the temperature of lunar surface is decreased with the increase of latitude because of the decrease of solar radiation intensity of lunar surfa...