Question

The force exerted on a vane is independent of the vane geometry and only a function of the cross section of the jet itself before it impacts the vane a)-True b)-False

Answer 1

False.

Step-by-step explanation:

Vanes are subject to longitudinal and circumferencial forces. These forces are of aerodynamic or hydrodynamic nature depending on the fluid. The longitudinal force is the drag force and the circumferential force is the lift force.

`Fd = (1)/(2)*Cd*\rho*V^(2)*A`

`Fl = (1)/(2)*Cl*\rho*V^(2)*A`

Where:

Fd: drag force

Fl: lift force

Cd: drag coefficient

Cl: lift coefficient

rho: density of the fluid

V: velocity of the fluid

A: cross section

The forces depend on the drag and lif coefficients, and these depend on the geometry of the body, in this case, a vane.