1. A method comprising: automatically rendering a determined volumetric flowrate of air and a corresponding dynamic air pressure at each of a plurality of radially distributed longitudinal vents in a core of an electric motor, said volumetric flowrate based upon obtained specification information, said volumetric flowrate determined via an iterative one-dimensional model, said iterative one-dimensional model calibrated based upon flow measurement data from an operating electric motor, said iterative one-dimensional model adapted to determine a fan curve based upon said flow measurement data, said iterative one-dimensional model usable for both an X pattern of ventilation and a Z pattern of ventilation via a single calibration without modeling a three-dimensional air space.