Cooling of water in a cavity by natural convection – comparison of numerical results

The analysis of the temperature and velocity field during the transient two dimensional cooling of water by natural convection enclosed in rectangular cavity with wall temperature maintained at 0 degrees Celsius is considered. This investigation is carried out in order to study the inversion of flow patterns caused by the maximum density of water at 4 degrees Celsius. The comparison of the numerical results obtained using the software developed at the Faculty of Mechanical Engineering and Naval Architecture (FAMENA) and the results obtained using commercial software FLUENT is given. Discrepancy between the results practically doesn’t exist that proves the accuracy of the developed model.