Required information Oil flow in a journal bearing can be treated as parallel flow between two large isothermal plates with one plate moving at a constant velocity of 4 m/s and the other stationary. Consider such a flow with a uniform spacing of 0.7 mm between the plates. The temperatures of the upper and lower plates are 40°C and 15'C, respectively.

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.

Handwritten solution, Please complete all the parts its easy

Problem 2 Consider forced convection of a liquid metal (Pr<<1) over a horizontal flat plate subject to a uniform heat flux q. Using an integral formulation, evaluate the Nusselt number, Nu, for a uniform velocity profile and linear temperature distribution. U Upo = 1 J T-T, y & Too-Ts

For laminar flow over a hot flat plate, the local heat transfer coefficient decreases with distance because (select all that are correct) The thickness of the heated region near the plate is increasing. The velocities near the plate are decreasing. The fluid temperatures near the plate are increasing.

Oil flow in a journal bearing can be treated as parallel flow between two large isothermal plates with one plate moving at a constant velocity of 8 m/s and the other stationary. Consider such a flow with a uniform spacing of 0.7 mm between the plates. The temperatures of the upper and lower plates are 40°C and 15°C, respectively. By simplifying and solving the continuity, momentum, and energy equations, determine (a) the velocity and temperature distributions in the oil, (b) the maximum temperature and where it occurs, and (c) the heat flux from the oil to each plate.

A 7 cm diameter bed on a 25 cm long bed, as shown in the figure below. The shaft rotates at 3200 revolutions per minute with uniform intervals of 0.2 mm. Continuous operation The temperatures of the shaft and bearing adjacent to the oil gap are 55 0C. your oil viscosity 0.05 N.s/m2 and its thermal conductivity is 0.17 W/m.K. Continuity, momentum and by simplifying the energy equations and solving for each separately, a) The maximum temperature of the oil, b) Calculate the heat transfer rates to the bearing and shaft.

Required information Oil flow in a journal bearing can be treated as parallel flow between two large isothermal plates with one plate moving at a constant velocity of 5 m/s and the other stationary. Consider such a flow with a uniform spacing of 0.5 mm between the plates. The temperatures of the upper and lower plates are 40°C and 15°C, respectively. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Vm/s uy) The properties of oil at the average temperature of (40+15)/2 = 27.5°C are k= 0.145 W/m-K and = 0.605 kg/m-s = 0.605 N-s/m² By simplifying and solving the continuity, momentum, and energy equations, determine the heat flux from the oil to each plate. The heat flux from the oil to the bottom plate is * 104 W/m² The heat flux from the oil to the top plate is * 104 W/m².

Water at 45.0oC flows over a large plate at a velocity of 30.0 cm/s. The plate is 1.0 m long (in the flow direction), and its surface is maintained at a uniform temperature of 5.0oC. Calculate the steady rate of heat transfer per unit width of the plate. Properties The properties of air at 1 atm and the film temperature of (Ts+T∞)/2 = (5+45)/2 = 25°C are: ρ = 996.6 kg/m3, k = 0.610 W/m.oC, μ = 0.854x10-3 kg/m.s, Pr = 5.85

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