Air at temperature 20 C and pressure 1 atm, flow over a flat plate at 3 m/s. The surface temperature of the plate 60 C and the plate width 30 cm, at distance 30 cm from the leading edge .Take the air properties as following, µ=2.02x10^-5 kg/m.s, k=0.0292 W/m.C, Cp=1.01 kJ/kg.C, : ρ = 1.128 kg/ m3, Pr=0.7. Choose the correct answer:   Total heat transfer rate The average heat transfer coefficient is : The thickness of thermal boundary layer is

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A: for mid plate the value of Reynolds number is 1x 105 , flow is turbulent

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A: Given:Air temperature, T=30oCAir density, ρ=1.165 kg/m3Kinematic viscosity, ν=16*10-5 m2/sFree…

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Q: ir at 20°C and with I Bar Pressure is flowing over a flat plate at a velocity of 2.801 m/s. If the…

A: Given Air temperaure T=20C=293 KVelocity(v)= 2.801 m/secplate width Lb=27.5 cm=0.275 mTp=60C=333…

Q: d the thickness of the boundary layer at a distance of x = 20 c

A: Re @ x =20 cm  Re = ρ Vxμ = Vxν= 5 * 0.21.995 x 10-5=50125.31328 < critical reynold snumber ,…

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A: Step 1: Step 2: Step 3: Step 4:

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Q: Air at Tair= 39 °C having velocity of 10 m/s is forced to flow over a long hexagonal cross sectioned…

A: Given: Thermal conductivity is 0.013 W/mK. Pr = 0.75 Kinematic viscosity= 2×10-5 m2/s

Q: Air at a temperature of 25°C is blown across a flat plate at a mean velocity of 10 m/s. If the plate…

A: Temperature of surrounding air, Ta=25°C=298KPlate surface temperature, Ts=525°C=798Kmean velocity,…

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Q: 4. During a cold winter day, wind blows parallel to a 4 m high and 10 m long wall of a house. If the…

A: Given: The height of wall is h=4 m The length of wall is L=10 m The temperature of air is T∞=5°C.…

Q: Air at standard pressure flows across a flat plate at 3m/s. The temperature surface is 50oC and the…

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Q: Consider airflow over a flat plate of length L = 1 m. a) Evaluating the thermophysical properties of…

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Q: u=16×10°m

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Q: Air at 295 K flows at 3 m/s over a flat plate at 390 K. The air properties are as follows: density…

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Q: Air at 20°C blows over a hot plate 50 by 75 cm maintained at 250°C. The convection heat-transfer…

A: Givenair temperature To=20oCarea of plate A=50 cm ×75 cm =0.50m×0.75mplate temperature T=250oCheat…

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Q: A1.8-m-diameter spherical tank of negligible thickness contains iced water at 0°C. Air at 25°C flows…

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Q: DO first case, Rex, = 5 × 10³, while in the second case the flow is tripped to a tu e the thermal…

A: V = 1.5 m/sT∞ =45°CTs = 20°CRex,c = 5 × 105x = 0m To-Determine:- x = ____mqlam'' = ____ W/m2qturb''…