COMPARISON OF NUMERICAL WAVE TANKS WITH VARIOUS TURBULENCE MODELS IN APPLICATION TO LONG WAVE MOTION AND ITS INTERACTION WITH A VERTICAL WALL
AbstractIn this study, performances of interFoam solver of OpenFOAM and CADMAS-SURF computational tools with several turbulence modelling approaches on the numerical modelling of long wave motion and its interaction with a vertical wall based on the physical model experiments presented by Arikawa (2015) are investigated and compared. IHFOAM is used as wave generation and absorption boundary condition (Higuera et al., 2013). Three-dimensional simulations are carried out solving Reynolds Averaged Navier Stokes (RANS) with no-turbulence model and with k-Îµ and k-Ï‰ SST (Shear Stress Transport) turbulence models in addition to Large Eddy Simulations (LES). The aim of this study is to understand the contribution from turbulence modeling and compare the numerical wave tanks in long wave motion and their interaction with a vertical wall. The results are further discussed in scope of required accuracy in such engineering applications focusing on computational time.
Arikawa and Yamano (2009): Application of treatment for spike-noise in Numerical Wave Tank computing impulsive wave pressure, Technical Note of Port and Airport Research Institute, No. 1175, in Japanese.
Arikawa (2015): Consideration of Characteristics of Pressure on Seawall by Solitary Waves Based on Hydraulic Experiments, Journal of JSCE, Ser. B2 (Coast. Eng.), in Japanese. Higuera, Lara & Losada (2013): Realistic wave generation and active wave absorption for Navier-Stokes models: Application to OpenFOAM®, Coastal Engineering, 71, 102-118.