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1) Describe the structure of incompressible turbulent flows of an atmospheric boundary layer with the help of suitable diagram.

2) describe the effect of terrain on gradient height with labelled sketch.

3) describe significant differences between the horizontal axis and vertical axis wind energy collectors.

4) describe what is Betz coefficient? describe how it is find outd by the momentum theory?

5) Define the following terms:

a) Aerodynamics of the trains

b) Estimation of drag coefficients of automobiles.

6)  Discuss the effects of cutback angle in vehicle aerodynamics.prepare briefly a note on the aerodynamics of Hovercraft.

7) describe the pressure distribution on the typical low rise buildings. How do you evaluate the aerodynamic loads on such buildings? describe the factors that are involved in the design of the building ventilation?

8) describe how are special aerodynamic problems pertaining to the tall buildings dealt with? Provide an account of environmental winds in the city blocks.

9) Explailn the effect of Reynold’s number over the shape and size of wake made behind the bluff bodies facing the uniform free stream. Make out the important attributes of external flow over body surface involving the flow separation.

10) describe the following topics in brief:

a) Stall flutter

b) Vortex induced vibrations.

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