PowerWiki: LadaMusilTeploAlfa

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This is the situation where the in a direction perpendicular from the surface of the solid body located at a sufficient distance only ATMOSPHERES fluid (there is no solid body). The prerequisite is that the body is an important dimension in height. They are also given weightings for free horizontally placed thin plate.

The movement of the fluid is caused by thermal changes of its density.

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* We calculat Nusselt number (Nu) from calculated ''Gr'' a ''Pr''

* We calculate Nusselt number (Nu) from calculated ''Gr'' a ''Pr''

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''λ'' – is thermal conductivity at an average temperature between the wall and the liquid ''T''%%sub stř%% = (''T''%%sub Stěny%% + ''T''%%sub Kapaliny%%) / 2\\

''λ'' – is thermal conductivity at an average temperature between the wall and the liquid ''T''%%sub stř%% = (''T''%%sub Wall%% + ''T''%%sub Fluid%%) / 2\\