Consider a large vertical plate with a uniform surface temperature of 130°C suspended in quiescent air at 25°C and atmospheric pressure. (a) Estimate the boundary layer thickness at a location 0.25 m measured from the lower edge. (b) What is the maximum velocity in the boundary layer at this location and at what position in the boundary layer does the maximum occur? (C) Using the similarity solution result, Equation 9.19, determine the heat transfer coefficient 0.25 m from the lower edge. (d) At what location on the plate measured from the lower edge will the boundary layer become turbulent?
Consider a large vertical plate with a uniform surface temperature of 130°C suspended in quiescent air at 25°C and atmospheric pressure. (a) Estimate the boundary layer thickness at a location 0.25 m measured from the lower edge. (b) What is the maximum velocity in the boundary layer at this location and at what position in the boundary layer does the maximum occur? (C) Using the similarity solution result, Equation 9.19, determine the heat transfer coefficient 0.25 m from the lower edge. (d) At what location on the plate measured from the lower edge will the boundary layer become turbulent?
Solution Summary: The author explains the boundary layer thickness at 0.25m measured from the lower edge.
Consider a large vertical plate with a uniform surface temperature of 130°C suspended in quiescent air at 25°C and atmospheric pressure. (a) Estimate the boundary layer thickness at a location 0.25 m measured from the lower edge. (b) What is the maximum velocity in the boundary layer at this location and at what position in the boundary layer does the maximum occur? (C) Using the similarity solution result, Equation 9.19, determine the heat transfer coefficient 0.25 m from the lower edge. (d) At what location on the plate measured from the lower edge will the boundary layer become turbulent?
FUNDAMENTALS OF CONVECTION
Consider a flat plate positioned inside a wind tunnel, and air at 1 atm and 20°C is flowing with a free stream velocity of 60 m/s.
What is the minimum length of the plate necessary for the Reynolds number to reach 2x107?
If the critical Reynolds number is 5x105, what type of flow regime would the airflow experience at 0.2 m from the leading edge?
Please, I need the solution from fundamental concepts of how the heat flow behaves in the system. That it be answered with theory of the subject
Laminar thermal boundary layer and associated temperature distribution related to flow on a flat plate at constant temperature are given below. The temperature distribution given shows the values at x = x. Free flow Isl sinur layer a) Does the fluid heat the plate? Is it cooling?
A flat plate 1.0 m wide and 1.0m long is placed in a wind tunnel. The temperature and the velocity of free stream air is 10°C and 80 m/s respectively. The flow over the whole length of the plate is made turbulent with the help of a turbulizing grid placed upstream of the plate. Calculate the mean value of the heat transfer coefficient from the surface of the plate.
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