NUMERICAL MODELING OF INTERNAL SOLITARY WAVES PROPAGATION IN A TWO LAYER SYSTEM

Internal waves play an important role in driving mixing in oceans and lakes. The balance between nonlinearity and dispersion causes propagation of internal solitary waves.These waves have been studied by means of experimental observations and Korteweg-de Vries equation [1]. Nonlinear internal waves have also been investigatedexperimentally by Horn et al [2]. To this end, several numerical models have been developed [3, 4]. In this paper an integrated VOF-ALE numerical model has beendeveloped, such that the VOF (Volume of Fluid) method has been implemented in WISE (Width Integrated Stratified Environments) 2DV ALE (Arbitrary Lagranigan-Eulerian) non-hydrostatic model [5] for simulation of interfacial waves.