Level flow control model by numerical physical model

The distributed process model used a three-dimensional dynamics numerical method is proposed to obtain the exact process model. Though the conventional centralized model also expresses the basic response, the distributed model expresses more details such as turbulence of fluid. According to the proposed distributed model, the free surface changes smoothly up and down for level controller disturbance, though the free surface has small creases initially. It can be confirmed by the proposed distributed process model that large variation of the level causes powder inclusion into molten steel.