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Water at 20°C is flowing with velocity of 1.01 m/s between two parallel flat plates placed...
1 Water at 20°C is flowing with velocity of 1.01 m/s between two parallel flat plates placed 1 cm apart. Given: The properties of water at 20°C are p = 998.0 kg/m3, j = 1.002 10-kg/m-s and Pr 7.01 7. value 4.00 points Required information Determine the distance from the entrance at which the velocity boundary layers meet. (Round the final answer to one decimal place.) The distance from the entrance at which the velocity boundary layers meet is m.
Use the sub navigation below to navigate within this series of questions. Water at 20°C is flowing with velocity of 1.01 m/s between two parallel flat plates placed 1 cm apart. Given: The properties of water at 20°C are p = 998.0 kg/m3, u = 1.002 * 10-3kg/m-s and Pr = 7.01 7. value 4.00 points Required information You received credit for this question in a previous attempt Determine the distance from the entrance at which the velocity boundary layers...
Water at 25°C is flowing over a long flat plate with a velocity of 8 m/s. The density and dynamic viscosity of water at 25°C are respectively, 997 kg/m3 and 0.891 x 10- 3 kg/m s. The distance from the leading edge of the plate where the flow becomes turbulent is: 30 mm 78 mm 47 mm 45 mm 56 mm
Water at 10 degrees Celsius and a velocity of 2.5 m/s is flowing along a 4.5 m long flat plate at a uniform temperature of 40 degrees Celsius. If the plate is 1.5 m wide, determine: a) the distance from the leading edge of the plate where the flow becomes turbulent, b) the heat transfer rate between the plate and the flowing water, c) the fraction of the force exerted by the water on the first half of the plate...
Air is flowing over a long flat plate with a velocity of 3 m/s. The density is 1.127 kg/mº, and the dynamic viscosity is 1.918-10-kg/m s. The hydrodynamic boundary layer thickness at a distance 0.3 m from the leading edge is: 0 6.41 mm 52,883 mm 5.85 mm 3.22 mm None of the above
A thin flat plate is placed in between two parallel plates (top and bottom) as shown in Figure Q1. The distance separating this thin flat plate with both parallel plates is h. Apart from having a stationary top plate, the thin flat plate is moving at the speed of U and the bottom plate is moving to the left at a velocity of 0.2U. The fluid in the upper flow region (above the thin flat plate) and in the lower...
Required information Air at 25°C and 1 atm is flowing over a long flat plate with a velocity of 7 m/s. The density and kinematic viscosity of air at 1 atm and 25°C are p= 1.184 kg/m3 and V = 1.562x10-5 m2/s. Calculate the distance from the leading edge of the plate where the flow becomes turbulent. The distance from the leading edge of the plate is m. Required information Air at 25°C and 1 atm is flowing over a...
Consider water at 25°C in parallel flow over an isothermal flat plate with a velocity of 0.5 m/s. (a) Calculate the boundary layer thickness : at x = 3 m. What would be the value of 8, if the flow velocity was 0.05 m/s? (b) Calculate the average heat transfer coefficient over the length x.
3. Consider the following fluids at a film temperature of 300 K in parallel flow over a flat plate with velocity of 1 m/s: atmospheric air and mercury. a. For each fluid, estimate the velocity and thermal boundary layer thicknesses at a distance of 40 mm from the leading edge. (4 pts for each boundary layer thickness determination. Total 16 pts) At what distance from the leading edge, do the boundary layers of air and mercury transition to turbulence? (5...
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.