Numerical simulation of cooling process after hot rolling with realistic residual water levels

The cooling process of a moving hot steel plate after hot rolling was numerically investigated. Many important parameters affect the cooling process. This study focuses on residual water, which accumulates on the surface of the moving plate by the continuous supply of cooling water. This residual water may significantly interfere with the impingement of water jets and the cooling of the steel plate. In this study, we devised a concept of artificial sidewalls to apply a realistic residual water level in a numerical simulation of a cooling hot steel plate. The necessity for this concept of an artificial sidewall for simulations of moving plate cooling was investigated by comparing the cooling history of the plate for three different longitudinal domain cases with and without artificial sidewalls.