Using water modeling and mathematical simulation method, the fluid dynamics, mixing characters and drain operations of 40t LF ladle have been investigated. The study of water experiment has been built on the base of similarly theory. The geometry and dynamic similarly numbers were considered mainly. For water modeling system, water has been used instead of steel and the model was made of acrylics, which was in the proportion of 1 : 4. For dynamic similarity, the similarly number of F'_r was considered. The ...