Distinguish between pressure and friction drag. Explain with sketches, why airfoil is designed as a streamlined body. [2074-Ashwin ] [5]

A 2mm diameter spherical ball of unit weight 117.5 KN/`m^3` is dropped in a mass of fluid of viscosity 15 poise and spec…

Water flows over 0.3 m long nad 0.1 m wide flat plate at 15 m/s parallel to it. Calculate the drag force on that porti…

Define aerofoil with accepted terminology with neat sketch. A wing with a span of 22m and 64 `m^2` plan area moves hori…

Find the expression for pressure and friction drag. What do you understand by a streamlined body? Give some examples of …

A 2000 kg aircraft is designed to carry a payload of 5000N when cruising at 300 km/hr. The effective wing area is `25 m^…

A kite has an effective area of `0.6 m^2` and mass 0.4 kg. It experience a drag of 15 N in a wind speed of 40 km/hr. Det…

Explain the drag of a Sphere.

An aircraft weighing 1000 KN when empty has a wing area of 220 `m^2`. It is to take off at a velocity of 300km/hr and a …