What is the difference between streamlined and bluff bodies? Is a tennis ball a streamlined or bluff body? What is drafting? How does it affect the drag coefficient of the drafted body? The resultant...

What is the difference between streamlined and bluff bodies? Is a tennis ball a streamlined or bluff body? What is drafting? How does it affect the drag coefficient of the drafted body? The resultant of the pressure and wall shear forces acting on a body is measured to be 430 N, making 30° with the direction of flow. Determine the drag and the lift forces acting on the body.