5.5. Turbulent flow

Consider flow and heat transfer over a flat plate. Up to ReL=5×105,image the flow stays laminar and beyond this there is transition to turbulence. The boundary layer grows thicker and eddies, and consequent mixing will be in the transition region and in the fully turbulent region beyond the transition. A depiction of the boundary layer flow over a flat plate is shown in Fig. 5.5.
image
Figure 5.5 Forced convection boundary layer development over a horizontal flat plate depicting the laminar, transition, and turbulent regions of flow.

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