Comparison of Wave Stresses in the Eulerian Nearshore Current Models

摘要

The Eulerian nearshore current model is more advantageous than the Lagrangian model in the way that numerical results from the Eulerian model can be directly compared with the measurements by the stationary equipment.It is because the wave mass flux is not included in the computed mass flux of Euleran nearshore current model.In addition,the Eulerian model can simulate the longshore currents with depth varying parabolic profile.However,the numerical models proposed by different researcher have different forms of the wave stress terms.For example,wave stresses in Newberger and Allen’s (2007) model is constant over the depth,while those of Chun (2012) are vertically distributed.In the present study,these wave stress terms were compared against Hamilton et al.’s (2001) laboratory experiments to see the effects of different wave stress terms performed on the computation of nearshore currents.