In order to reduce the number of variables, the equations and its parameters for freezing temperature field were converted to dimensionless ones according to the theory of similitude at first.

• 摘要应用相似理论将冻结温度场方程和参数无量纲化，然后建立无量纲的数值计算模型，研究了在外表面恒温情况下冻结管壁的无量纲热流密度与各无量纲影响参数间的关系。