Discuss the below:
Q: Hydrogen at 15°C and at a pressure of 1 atm is flowing along a flat plate at a velocity of 3 m/s. If the plate is 0.3 m wide and at 71°C, calculate the following quantities at x = 0.3 m and at the distance corresponding to the transition point, i.e., Rex = 5 A 105. (Take properties at 43°C.)
(a) Hydrodynamic boundary layer thickness, in cm.
(b) Thickness of thermal boundary layer, in cm.
(c) Local friction coefficient, dimensionless.
(d) Average friction coefficient, dimensionless.
(e) Drag force, in N.
(f) Local convective-heat-transfer coefficient, in W/(m2 °C).
(g) Average convective-heat-transfer coefficient, in W/(m2 °C).
(h) Rate of heat transfer, in W.
GIVEN
Hydrogen flowing over a flat plate
Hydrogen temperature (T∞) = 15°C
Hydrogen pressure = 1 atm
Velocity (U∞) = 3 m/s
Plate temperature (Tw) = 71°C
Width of plate = 0.3 m
ASSUMPTIONS
Steady state
Constant fluidproperties
