Influence of natural convection on the melting of ice block surrounded by water on all sides (CROSBI ID 124720)
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Podaci o odgovornosti
Virag, Zdravko ; Živić, Marija ; Galović, Antun
engleski
Influence of natural convection on the melting of ice block surrounded by water on all sides
The ice block at initial temperature Tis=0°C is fixed at the center of a long, prismatic enclosure with isothermal vertical walls and insulated horizontal walls. The enclosure is completely filled with water at initial temperature Til=0°C. Six numerical simulations were performed by varying vertical wall temperatures from TW=2 to 12°C (range of Rayleigh number from 4.22x10**6 to 2.28x10**7). In the case of TW>8°C the ice melts faster from above and for TW<8°C from below. In the case of TW=8°C, two vortices are separated by nearly vertical 4°C isotherm and the average Nusselt number remains constant during the convection dominated regime.
ice melting; natural convection; rectangular enclosure; finite volume method
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