Section: Fluid Mechanics | Type: NAT | Marks: 2
Consider, a kite weighing 100 grams as essentially a rigid flat plate making an angle 8° with the horizontal and having a planform area of 0.045 m2 when exposed to horizontal parallel wind of 60 km/h. The thread string of the kite makes an angle 45° with the horizontal. A tension of 450 grams in the thread is necessary to float the kite steadily. Take air density as 1.2 kg/m3 and gravitational acceleration as 9.81 m/s2. The lift coefficient (𝐶𝐿) associated with the air flow around steadily floating kite (rounded off to 2 decimal places) is ________
Answer: 0.50 to 0.60