![]() Different flow regimes based on the stability of the boundary layer have been discussed with numerical results. A numerical verification of the time for the onset of instability is also presented in this study. Determine (a)- the average convection heat transfer coefficie. Determine the average convection heat transfer coefficient, convective heat transfer rate, and drag force associated with an L 3-m-long, W 2-m wide flat plate for airflow and surface temperatures of Ts, 50 degree C. An appropriate identification of the time when the instability may set in is discussed. Consider a flat plate subject to parallel air flow (top and bottom) characterized by ugo 5 m/S, Too 20'C with an L 2-m-long, w 2-m-wide and surface temperatures of T, 80 C. Transcribed image text: Consider a flat plate subject to parallel flow (top and bottom) characterized by u 5 m/s, T 20 degree C. ![]() Proper scales have been established to quantify the flow properties in each of these flow regimes. The flow adjacent to the plate can be classified broadly into a conductive, a stable convective, or an unstable convective regime determined by the Rayleigh number. The scaling relations have been developed by equating important terms of the governing equations based on the development of the boundary layer with time. A scaling relation for the onset of instability of the boundary layer is achieved. It is found that the cold boundary layer adjacent to the plate is potentially unstable to Rayleigh–Bénard instability if the Rayleigh number exceeds a certain critical value. 7.10 WP Consider a flat plate subject to parallel flow (top and bottom) characterized by u 5 m/s, T 20☌. The natural convection boundary layer adjacent to an inclined plate subject to sudden cooling boundary condition has been studied.
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