Path: ACPro/ACDesign
% Compute the propeller advance ratio Computes the advance ratio for a propeller. This is a dimensionless ratio used to compute the relative magnitude of the airspeed vs the propeller speed. Inversely proportional to the "tip speed ratio" and proportional but with a multiplying factor for the helicopter mu ratio. Type AdvanceRatio for a demo. -------------------------------------------------------------------------- Form: j = AdvanceRatio( v, n,d ) -------------------------------------------------------------------------- ------ Inputs ------ v (1,:) Free stream velocity n (1,:) RPS d (1,1) Propeller diameter ------- Outputs ------- j (1,:) Advance ratio -------------------------------------------------------------------------- Reference: Clancy, L.J. (1975), Aerodynamics, Section 17.2, Pitman Publishing Limited, London --------------------------------------------------------------------------
Common: CommonData/SwooshWatermark Common: General/CellToMat Common: General/MatToCell Common: General/Watermark Common: Graphics/NewFig Common: Graphics/Plot2D Common: Graphics/PltStyle
Back to the ACPro Module page