BDA 30203 – Fluid Mechanics II

Review Problems for Final Exam

Chapter 1

8-52C

8-56C

Chapter 2

9-87 Consider the following steady, two-dimensional, incompressible velocity field: V = (-ax2)i + (2axy)j, where a is a constant. Calculate the pressure as a function of x and y.

9-89 Consider the following steady, two-dimensional, incompressible velocity field: V = (ax+b)i + (-ay+c)j, where a, b, and c are constants. Calculate the pressure as a function of x and y.

10-52 Consider the following steady, two-dimensional, incompressible velocity field: V = (ax+b)i + (-ay+c)j. Is this flow field irrotational? If so, generate an expression for the velocity potential function.

10-54 Consider the following steady, two-dimensional, incompressible velocity field: V = (0.5ay2+b)i + (-axy2+c)j. Is this flow field irrotational? If so, generate an expression for the velocity potential function.

Chapter 3

11-92 A small aircraft has a wing area of 28 m2, a lift coefficient of 0.45 at takeoff settings, and a total mass of 2500 kg. Determine (a) the takeoff speed of this aircraft at sea level at standard atmospheric conditions, (b) the wing loading, and (c) the required power to

maintain a constant cruising speed of 300 km/h for a cruising drag coefficient of 0.035.

11-93 A small airplane has a total mass of 1800 kg and a wing area of 42 m2. Determine the lift and drag coefficients of this airplane while cruising at an altitude of 4000 m at a constant speed of 280km/h and generating 190 kW of power.

Chapter 4

Example 14-2

Example 14-10

Example 14-11

Chapter 5

Example 12-5