先进材料凝固实验室 Situation 3:No diffusion in the solid,normal diffusion in the liquid,no convection. Laboratory of Advanced Materials Solidification aCL at S L △x R is growth rate. rr+Ar Initial transient→ Steady-State→ Terminal Transient Boundary Terminal transient layer Initial transient start X dist ance finish 上游充通大学 SHANGHAI JIAO TONG UNIVERSITYR is growth rate. Situation 3: No diffusion in the solid, normal diffusion in the liquid, no convection