Morison’s Generalized Equation 1. Description The Morison generalized equation is an empirical formulation used for calculations of hydrodynamic loads on slender structures, i.e. slender versus wavelength and wave height. Morison’s equation can be used when the the wavelength is large relative to the diameter. 2. Theory For details, see Theory - Load models - Hydrodynamic Load Models for Submerged Elements Hydrodynamic Load Models MacCamy-Fuchs Load Model