Question: Problem 1 The viscous dissipation term in the boundary layer energy equation (given below) is of importance only at high velocity flows. Making an order

Problem 1 The viscous dissipation term in the boundary layer energy equation (given below) is of importance only at high velocity flows. Making an order of magnitude analysis show that this term is negligible compared to the other terms in the energy equation for flow of air at Tx=20C and atmospheric pressure with Ux=5m/s over a solid surface maintained at Tw=100C. Problem 2 The thickness of a two-dimensional boundary layer is and is growing at the rate. Show that; a) the ratio of x22u to y22u is small in derivation of boundary layer momentum equation (given below), b) the order of this ratio is . Problem 1 The viscous dissipation term in the boundary layer energy equation (given below) is of importance only at high velocity flows. Making an order of magnitude analysis show that this term is negligible compared to the other terms in the energy equation for flow of air at Tx=20C and atmospheric pressure with Ux=5m/s over a solid surface maintained at Tw=100C. Problem 2 The thickness of a two-dimensional boundary layer is and is growing at the rate. Show that; a) the ratio of x22u to y22u is small in derivation of boundary layer momentum equation (given below), b) the order of this ratio is

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