Abstract
In order to predict the cooling process of a hot steel plate by a water curtain, the numerical model built up previously has been extended to the case where a horizontally fixed hot steel plate is cooled by a curtain dropping from a slit nozzle with a very large aspect ratio, because a number of similarities potentially present themselves betwen the water bar and the water curtain coolings. As a result, the numerical cooling curves calculated by the present modified model have been found to be in fairly good agreement with the experimental ones for various water flow rates.