摘要
根据周期性变化的环境温度和土壤半无限大平壁假设,建立了土壤导热数学模型,并采用PHOENICS3.6软件求解,得出了不同温度波对土壤导热区域的影响。研究了不同频率、振幅的热波及不同物性参数的土壤对不同深度处热波响应特性的影响。指出该研究方法可以应用于冷热油交替输送管道的非稳态温度场研究。
A heat conduction mathematical mode] of soil is set up according to the assumption of ambient temperature periodic variation and semi-infinite soil and Phoenics 3. 6 software is used to obtain the effect of different temperatures on soil' s heat conduction area. Soil' s heat response characteristic at different depth is explored with different frequency, thermal wave in different amplitudes, and different material parameters. The research method can be applied for study on unsteady state temperature field of cold-hot oil batching transportation.
出处
《油气储运》
CAS
北大核心
2007年第11期49-51,共3页
Oil & Gas Storage and Transportation
基金
中国石化股份公司资助项目(X504007)
江苏省教育厅基金项目(04KJB440030)
关键词
土壤温度场
非稳态环境
恒温层
热波动
特性
研究
soil temperature field, unsteady state circumstance, constant temperature layer, thermal fluctuation,characteristics,study