以设计的5 kW太阳模拟器为光源,加热斯特林发动机的吸热器.首先以蒙特卡洛光线追迹法确定太阳模拟器与斯特林发动机吸热器间辐射热流分布,然后将辐射热流分布的计算结果以边界条件形式传递给CFD模型,对吸热器的温度分布特性进行数值计算;吸热器壁面温度采用安捷伦数据采集仪及热电偶温度计进行测试,吸热器壁面温度数值模拟结果与实验值的最大误差仅为4.7 K,太阳模拟器最大辐照度可达196个太阳常数,设计的5 kW太阳模拟器满足驱动1kW斯特林发动机的工作需求.
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