FEM analysis of transient freezing temperature field of frozen multi-wall tube

The artificial freezing temperature field is an unstable transient heat conduction phenomenon related to space and time,as well as phase changing. On the basis of a case study regarding freezing engineering project from a coal mine,Huainan,the frozen wall thickness,average temperature,freezing time of an oblique frozen tube are simulated using large-scale non-linear finite element computational procedure ADINA numerical simulator,resulting in the data coincided with site measured.The study demonstrated that the application of finite method analysis can predict the temperature field development of frozen tube wall,and it can provide reference data for performance of freezing engineering projects.