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Air at atmospheric pressure and temperature of 56 5 C flows with velocity of 0915 m/sec...
Air at atmospheric pressure and temperature of 565 C flows with velocity of 0915 m/sec along...
Air at atmospheric pressure and temperature of 565 C flows with velocity of 0915 m/sec along a flat plate which is kept at a uniform temperature of 121.1 C. Determine the local heat transfer coefficient hk) at a distance of 0,61 meter from the leading edge of the plate and the total heat transfer coefficient hm over the length of x 0 to x= 0.61m peer feet of plate width. Air at average temperature has Pr 0.62, k-0.0313 W/m. C...
Air at atmospheric pressure and a temperature of 25°C is in parallel flow at a velocity...
Air at atmospheric pressure and a temperature of 25°C is in parallel flow at a velocity of 5 m/s over a 1-m-long flat plate that is heated from below with a uniform heat flux of 1250 W/m2. Assume the flow is fully turbulent over the length of the plate. Evaluate properties at 325 K. (a) Calculate the plate surface temperature, Ts(x), in °C, and the local convection coefficient, hx(x ), in W/m2.K. at x = 0.2 m. (b) Calculate the...
Air flows with a velocity of 20 m/s over a flat plate of length 2 m....
Air flows with a velocity of 20 m/s over a flat plate of length 2 m. The air properties are k = 0.030 W/mK, V = 20.92 x 10-6 m/s, Pr=0.700. a. What type(s) of flow (laminar/turbulent) exist on this plate? b. If the following relations are given for the laminar and turbulent local convection coefficients over the plate, haminar (x) = 20 houwbudemo (x) = .52 where x is the distance from the plate leading edge. Find the average...
-/25 !!! Current Attempt in Progress Air at atmospheric pressure and a temperature of 25°C is...
-/25 !!! Current Attempt in Progress Air at atmospheric pressure and a temperature of 25°C is in parallel flow at a velocity of 5 m/s over a 1-m-long flat plate that is heated from below with a uniform heat flux of 1250 W/m². Assume the flow is fully turbulent over the length of the plate. Evaluate properties at 325 K. (a) Calculate the plate surface temperature, Ts(x). in °C, and the local convection coefficient, hx(x), in W/m².K. at x =...
8) Air flows over a flat plate at a velocity of 20 m/s and a temperature...
8) Air flows over a flat plate at a velocity of 20 m/s and a temperature of 20C. The surface temperature of the plate is 134C, and the length of the plate in the direction of flow is 1.5 m. Properties of air may be taken as A-0.030 W/m-C, Pr-0.700, and a/p 2.092E-5 m/s (5% ) What is the location from the leading edge, X, where the flow becomes turbulent Re (20)15 a l Ve30s T20 T LaLS 523 m...
A thin, flat plate of 0.6 m square is immersed in a parallel stream of air at atmospheric pressure and 15 ºC flowing at a velocity of 6 m/s. Neglect edge effects. a) Determine the drag force exerted o...
A thin, flat plate of 0.6 m square is immersed in a parallel stream of air at atmospheric pressure and 15 ºC flowing at a velocity of 6 m/s. Neglect edge effects. a) Determine the drag force exerted on the plate. b) Determine the boundary layer thickness and the local drag coefficient at a distance 0.3 m from the leading edge.
Air at atmospheric pressure and 20 °C flows over a plate with the surface heat flux...
Air at atmospheric pressure and 20 °C flows over a plate with the surface heat flux specified as 20 WImfor 0 <x < 15 cm 10 W/mo 15 cm. Derive the variation of wall temperature with the distance x from the leading edge in the laminar boundary layer region and evaluate the wall temperature numerically at 30 cm.
please show all work, thanks 3 (30%). Air, at atmospheric pressure and temperature of 100°C, flows...
please show all work,
thanks
3 (30%). Air, at atmospheric pressure and temperature of 100°C, flows with a velocity of 10 m/s over a flat plate 0.5 m long and 1 m wide. If the pressure is reduced to half the atmospheric pressure (at the same temperature and flow velocity), how much would the total heat transfer rate be reduced (in fraction or %)?
q5 Atmospheric air at25hows over a fiat plate at a velocity of o ms The ter...
q5
Atmospheric air at25hows over a fiat plate at a velocity of o ms The ter p The flat plate, ofm width and Qomm thickness is maintained at a uniform surface temperatureo Use the following thermophysical properties of the plate k = 5.2 w/rm.K; Cp = 320 J/kE- ρ = 2300 kg/m2. Determine the required power generation q (W/m2) at a distance of 700mm from the leading edge of the plate.
Air at a temperature of 300 K flows over one side of a flat plate of...
Air at a temperature of 300 K flows over one side of a flat plate of width 1 m at a velocity of 20 m/s. The plate has a constant surface temperature of 350 K. Assume Re(x,c)=5x10^5. a) What is the velocity boundary layer thickness at the end of the plate if L=0.25 m? What if L=1 m? b) Calculate the drag on the plate if L=0.25 m. What is the drag if L=1 m? c) Find the heat transfer...
Air at atmospheric pressure and temperature of 565 C flows with velocity of 0915 m/sec along a flat plate which is kept at a uniform temperature of 121.1 C. Determine the local heat transfer coefficient hk) at a distance of 0,61 meter from the leading edge of the plate and the total heat transfer coefficient hm over the length of x 0 to x= 0.61m peer feet of plate width. Air at average temperature has Pr 0.62, k-0.0313 W/m. C...
Air at atmospheric pressure and a temperature of 25°C is in parallel flow at a velocity of 5 m/s over a 1-m-long flat plate that is heated from below with a uniform heat flux of 1250 W/m2. Assume the flow is fully turbulent over the length of the plate. Evaluate properties at 325 K. (a) Calculate the plate surface temperature, Ts(x), in °C, and the local convection coefficient, hx(x ), in W/m2.K. at x = 0.2 m. (b) Calculate the...
Air flows with a velocity of 20 m/s over a flat plate of length 2 m. The air properties are k = 0.030 W/mK, V = 20.92 x 10-6 m/s, Pr=0.700. a. What type(s) of flow (laminar/turbulent) exist on this plate? b. If the following relations are given for the laminar and turbulent local convection coefficients over the plate, haminar (x) = 20 houwbudemo (x) = .52 where x is the distance from the plate leading edge. Find the average...
-/25 !!! Current Attempt in Progress Air at atmospheric pressure and a temperature of 25°C is in parallel flow at a velocity of 5 m/s over a 1-m-long flat plate that is heated from below with a uniform heat flux of 1250 W/m². Assume the flow is fully turbulent over the length of the plate. Evaluate properties at 325 K. (a) Calculate the plate surface temperature, Ts(x). in °C, and the local convection coefficient, hx(x), in W/m².K. at x =...
8) Air flows over a flat plate at a velocity of 20 m/s and a temperature of 20C. The surface temperature of the plate is 134C, and the length of the plate in the direction of flow is 1.5 m. Properties of air may be taken as A-0.030 W/m-C, Pr-0.700, and a/p 2.092E-5 m/s (5% ) What is the location from the leading edge, X, where the flow becomes turbulent Re (20)15 a l Ve30s T20 T LaLS 523 m...
Air at atmospheric pressure and 20 °C flows over a plate with the surface heat flux specified as 20 WImfor 0 <x < 15 cm 10 W/mo 15 cm. Derive the variation of wall temperature with the distance x from the leading edge in the laminar boundary layer region and evaluate the wall temperature numerically at 30 cm.
please show all work,
thanks
3 (30%). Air, at atmospheric pressure and temperature of 100°C, flows with a velocity of 10 m/s over a flat plate 0.5 m long and 1 m wide. If the pressure is reduced to half the atmospheric pressure (at the same temperature and flow velocity), how much would the total heat transfer rate be reduced (in fraction or %)?
q5
Atmospheric air at25hows over a fiat plate at a velocity of o ms The ter p The flat plate, ofm width and Qomm thickness is maintained at a uniform surface temperatureo Use the following thermophysical properties of the plate k = 5.2 w/rm.K; Cp = 320 J/kE- ρ = 2300 kg/m2. Determine the required power generation q (W/m2) at a distance of 700mm from the leading edge of the plate.
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