Inflow Velocity to the Rudder

The inflow velocity to the rudder is mainly affected by the propeller race which depends on the propeller loading conditions as well as the hull shedding effect, that means, wake. From the propeller momentum theory the axial flow to the rudder can be expressed by.

is a coefficient representing the effect of oblique flow on the wake pattern, see equations References. is a coefficient determined experimentally, References 27. The lateral inflow velocity to the rudder is,

where is the position of the rudder from midship. The total flow velocity to the rudder is,