Modelling waves in coastal and port areas based on the so-called “mild slope equation” initially proposed by Berkhoff (1972) in a framework of linear potential flows (assumption of small amplitude waves or low wave steepness). It is a so-called phase-resolving model, initially formulated for regular waves (i.e. with a fixed wave period or frequency). It can also handle irregular wave fields (characterised by a frequency spectrum of energy) and/or multidirectional waves, by linear superposition of elementary calculations carried out for a given wave frequency and direction. In terms of physical processes, ARTEMIS is suitable for modelling processes affecting wave propagation over variable bottoms in coastal areas (refraction, shoaling), interactions with obstacles or coastal/port structures (reflection, diffraction), as well as energy dissipation processes due to bottom friction and/or surf-breaking in shallow water. The effects of an ambient current (due to the tide, for example) can also be taken into account. ARTEMIS is particularly well suited to studies of wave penetration and agitation in ports, harbour basins, seawater intake or discharge channels. It can also be used to study the risks of resonance (seiches) in these basins.

Wave simulation over the Alexandria lighthouse archaeological site