Experimental Study for Directional Wave Force on a Column

Real sea wave is quite random in amplitndes, periods and propagating directions. Offshore sea waves, therefore, have characteristics of “directional randomness”. Directional random waves in the offshore consist of the component waves each propagating in different directions in shallow area. Some coastal structures constructed in deep water area should be designed for directional random waves. The experiment for the directional wave force are done. The target structure is a column, which is the simplest component in coastal structures. The wave force on a column in directional seas is compared with that in uni-directional waves.