Hudson's equation

The Hudson formula is applied in hydraulic and coastal engineering and empirically derived equation for the calculation of revetments. The formula was derived in the 1940s and 1950s with the help of a series of experiments at the research facility " Waterways Experiment Station " of the United States Army Corps of Engineers in Vicksburg, Mississippi.

Formula

With the help of the Hudson formula ( the significant wave height in the rule) to determine the required mass of a stone in kilograms in a revetment, depending on the design wave height in meters, so that the revetment will not be damaged in the attack this wave height. Other parameters in the equation are considered, the density of the stone material and the water ( in each case in kilograms per cubic meter ), the slope of the embankment, and a dimensionless empirically determined factor of the block mold, stone material, and the waveform.