摘要
物性数据是科学研究的基础。根据分子的统计运动觃律,以氮气、氢气和氦气为例,采用蒙特卡罗方法预测这三种气体的导热系数和黏性系数。建立了预测模型,并将预测结果迚行比较。结果表明:在常温范围,蒙特卡罗方法的预测值和NIST参考值、理论计算值非常接近。说明蒙特卡罗方法在物性参数计算上是可行的。但是在低温和高温范围,蒙特卡罗方法的预测值偏差较大。
Physical data are the basis of scientific research.According to the statistical movement of molecules,the thermal conductivity and viscosity of nitrogen,hydrogen and helium were predicted by Monte Carlo method.The prediction model was established,and the results were compared with other sources.The results showed that the predicted value of Monte Carlo method was very close to NIST reference value and theoretical calculation value in the range of normal temperature.So the Monte Carlo method is feasible in the calculation of physical parameters.But,at relative low temperature or high temperature,the predicted value of Monte Carlo method has large deviation.
作者
董益华
林俊光
张曦
罗海华
DONG Yi-hua;LIN Jun-guang;ZHANG Xi;LUO Hai-hua(Zhejiang Energy Group Co.,Ltd.,Hangzhou Zhejiang 310007,China;Zhejiang Energy Technology Research Institute Co.,Ltd.,Hangzhou Zhejiang 311121,China)
出处
《当代化工》
CAS
2020年第7期1269-1272,1297,共5页
Contemporary Chemical Industry
基金
国家自然科学基金(项目编号:51576066)
关键词
蒙特卡罗方法
导热系数
黏性系数
NIST参考值
理论计算值
Monte Carlo method
Thermal conductivity
Viscosity coefficient
NIST reference value
Theoretical calculation value
作者简介
董益华(1979-),男,浙江奉化人,高级工程师,硕士,2004年毕业于东南大学,研究方向:综合能源系统性能测试与节能优化研发。E-mail:dongyihua109@sina.com。
