Structural Analysis
Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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Air at temperature 20 C and pressure
1 atm, flow over a flat plate at 3 m/s.
The surface temperature of the plate
60 C and the plate width w 20 cm at
distance 30 cm from the leading
edge Determine the following.1.
Thickness of velocity boundary
layer.2. Thickness of thermal
boundary.3. Local heat transfer
coefficient.4. Average heat transfer
coefficient.5. Local friction
coefficient.6. Average friction
coefficient.7. Local shear stress.8.
Average shear stress.9. The drag
force.10. Total heat transfer rate.11.
The local temperature at y=2mm
from the surface.12. The local velocity
at y=2mm from the surface.13. If the
air flows with shortest dimension
(width) at velocity u and, If ql=qw,
find u by assume combined flow.Take
the air properties as following,
H=2.02x10-5 kg/m.s, k%3D0.0292 W/m.C,
Cp=1.01 kJ/kg.C,:p = 1.128 kg/ m3
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Transcribed Image Text:Air at temperature 20 C and pressure 1 atm, flow over a flat plate at 3 m/s. The surface temperature of the plate 60 C and the plate width w 20 cm at distance 30 cm from the leading edge Determine the following.1. Thickness of velocity boundary layer.2. Thickness of thermal boundary.3. Local heat transfer coefficient.4. Average heat transfer coefficient.5. Local friction coefficient.6. Average friction coefficient.7. Local shear stress.8. Average shear stress.9. The drag force.10. Total heat transfer rate.11. The local temperature at y=2mm from the surface.12. The local velocity at y=2mm from the surface.13. If the air flows with shortest dimension (width) at velocity u and, If ql=qw, find u by assume combined flow.Take the air properties as following, H=2.02x10-5 kg/m.s, k%3D0.0292 W/m.C, Cp=1.01 kJ/kg.C,:p = 1.128 kg/ m3
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