Flow over flat plate has velocity and temperature distribution as, u (r, x) = C, and T (r, x) = C 2 R Then, bulk field, mean temperature of flow 2
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- For free flow of air over a plate, it is given that Grashof number is 7 x 10º and Prandtl number is 0.25 Then, determine the type of flow.Consider Couette flow for two plates separated by a 6 inch-thick layer of 10W-30 oil. The top plate is pulled with a constant velocity of 3 m/s while the bottom plate is held stationary. What is the velocity of the fluid at a location 4 inches above the bottom plate?Answer completely Show how the Darcy-Weisbach equation can be derived from the Hagen-Poiseuille equation through the introduction of the Reynolds number. What is the friction factor, f, equal to for flow at a laminar condition? What is it equal to in other regimes of flow?
- Q. 6 A 4.5-cm wide space between two plates is filled with SAE 30W lubricating oil at 26.7°C (Hoil = 0.301645 N.S/m2 ). What is the area of a very thin plate which is dragged by a force of 18 N through the oil at velocity of 16 m/min if the plate is 1.5 cm away from one of the fixed surfaces?) A 75 mm-diameter orifice is on the verticalside of a closed tank. The tank rests on a flat groundand the orifice is 0.5 m above the ground. Filled withfour fluids with air on the topmost portion that is undera pressure of 15 KPa, and the rest of specific gravities of0.80, 1.0, and 1.50, respectively, the jet hits the groundat a horizontal distance of 3.75 m. If the liquids have thesame thickness, and the power lost in the system is 233watts, determine the following:(a) The initial discharge in L/s if C=0.63.(b) The thickness of each liquid in m.(c) The coefficient of contraction.A 20degC water flows to 50cmx60cm flat plate with velocity of 6m/s . The flat plate surface temperature is maintained at 40deg C. The water flows parallel to the 50cm side of the plate. If the kinematic viscosity of water is 78x10-8 m2/s, What is the local heat flux (Q/A) at the end of the plate (k=0.86 W/m deg C, Re=3840000, and Pr=0.7)? Round your answer to 2 decimal places.
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- What is the function of V-cone flow element and manifold pressure measuring devices, where equipment this can applied and What manufacturing processes may they be found in?Write down the power-law velocity profile empirical correlation and when is this relation valid?What is the physical significant of prandtl number? Question does the value of the prandtl number depend on the type of flow, or the flow geometry? Does the prandtl number of air change with pressure? does it change your temperature?