Hie various methods used for determining the vessel’s squat while she steamed in the shallow water, in channels presented in numerous foreign and domestic research are compared. All the equations are subdivided into groups by linear, quadratic, cubic and more complex functional dependence on the ship's speed with the coefficients correlated with the navigation conditions and the vessel’s dimensions. The analysis of the equation representing calculation of the coefficients and values of the vessel’s squat is given.
vessel’s speed, dynamic squat, shallow waters, channel, depth, Froude number
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