ABSTRACT
Initially, a simple 1-D model for an ideal rotor design configuration will be evaluated to identify the critical roles of axial velocity, pressure drops across the rotor, and the axial component of the pressure forces acting on the control volume. Critical circular control flow parameters will be identified along with their effects on axial velocity. Reasons for velocity jumps in the wake will be cited. Conditions and parameters required for stationary, incompressible, and frictionless flow will be identified. Use of the Bernoulli equation will be justified for the far upstream area to just in front of the rotor and from just behind the rotor. The axial momentum equation for an ideal rotor will be derived using certain assumptions. The expression for the rotational speed of a rotor will be developed as a function of axial induction and axial wind velocity.
