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Compare And Contrastatic Diagram Of A Schematic Diagram

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A schematic diagram of two-dimensional Figure. 1. The left and right walls are maintained at different constant temperatures while upper and bottom walls are thermally insulated, the left wall (cold) is moving up while right wall (hot) is fixed. The flow is assumed to be laminar and the fluid properties are assumed to be constant except for the density variation which is assumed to follow Boussinesq approximation while viscous dissipation terms are considered to be negligible. The viscous incompressible flow and the temperature distribution inside the cavity are governed by the NaviereStokes and the energy equations, respectively. The aim of the present study is to investigate the steady solutions and hence, we have considered the time independent differential …show more content…

We also note that the lines are perpendicular to the horizontal walls which is the adiabatic condition is imposed. The upward movement of the movable cold wall leads up the fluid layers adjacent to the wall by viscous forces. We also note that when the Reynolds number increases the cold temperature prevails in most left upper side. ixed Convection The stream lines are presented in Figure 7 for different Reynolds numbers (5, 70, and 200) and different Grashof numbers (250, 4900 and 32000). Two counterrotating cells of different shapes and intensities are observed. One counterclockwise cell occupies two-thirds to three quarters of the cavity; the other clockwise cell occupies the left. Note also that the flow driven by the cell near the moving wall and the cold by the cell near the hot wall has the same magnitude. Figure 7 shows also the isotherms for the same Reynolds numbers and Grashof. Note that the deviation of the isothermal lines is significant near two walls (hot and cold), which explains the combined effect of convection regime on isotherm

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