URGENT Help! Please explain the steps! Case 1: Air at atmospheric pressure and a temperature of
20\deg C is in parallel flow at a velocity of
5(m)/(s) on a 10-m-long flat plate that maintains its surface temperature at
T_(s)=180\deg C throughout the entire plate length. The width of the plate is 1 m .
(a) Determine the local heat transfer coefficient
(h_(x)) of the air flow at 2-m-away from the leading edge. Note that the critical Reynolds number
(Re_(x,c)) is
5\times 10^(5).
(b) Determine the heat transfer rate from the entire plate surface to the air.
(c) Case 2: Air ( 1 atm and
20\deg C ) is in parallel flow at a velocity of
2.5(m)/(s) on a
20-m-long flat plate that maintains its surface temperature at
T_(s)=180\deg C throughout the entire plate length. The width of the plate is 2 m .
[Multiple Choices] Which of following(s) is/are the same for both Case 1 and Case 2? Choose all that apply. [Hint: Think about boundary layer similarity.]
(1) Reynolds number of air flow at 5-m-away from the leading edge
(2) Reynolds number of air flow at the end of the plate
(3) Average Nusselt number for the entire surface
(4) Critical length
(5) Average heat transfer coefficient of air flow for the entire plate surface
(6) Prandtl number of air flow
(7) Average friction coefficient for the entire plate surface
(8) Average surface shear stress for the entire plate surface
(9) Heat transfer rate from the entire surface to the air
(10) Drag force exerted on the entire surface by the air flow
