Chapter:

Flow-Past-Through-Submerged-Body

Define aerofoil with accepted terminology with neat sketch. A kite which may be assumed to be a flat plate and mass 1 kg soars at an angle to horizontal. The tension in string holding kite is 60N when wind velocity is 50 km/hr horizontally and angle of string to horizontal direction is `35^0`. The density of air is 1.2 kg/`m^3`. Calculate drag coefficient for kite in given position if lift coefficient in same position is 0.45. Both coefficients have been used in full area of kite. [ 2068-Shrawan ][8]