Numerical simulation of wave-current interaction using a RANS solver
Author(s)
Zhang, J-S
Zhang, Y
Jeng, D-S
Liu, PL-F
Zhang, C
Griffith University Author(s)
Year published
2014
Metadata
Show full item recordAbstract
A numerical model is developed to study the wave propagation in the presence of a steady current flow. This model is based on Reynolds-Averaged Navier-Stokes (RANS) equations with k-ek-e turbulence closure scheme. A novel volume of fluid (VOF) method is applied to accurately capture the water free surface. The current flow is initialized by imposing a steady inlet velocity on one domain end and pressure outlet on the other end, while the desired wave is generated by an internal wave-maker from mass source term of mass conservation equation. Simulated water surface profile and velocity distribution agree well with experimental ...
View more >A numerical model is developed to study the wave propagation in the presence of a steady current flow. This model is based on Reynolds-Averaged Navier-Stokes (RANS) equations with k-ek-e turbulence closure scheme. A novel volume of fluid (VOF) method is applied to accurately capture the water free surface. The current flow is initialized by imposing a steady inlet velocity on one domain end and pressure outlet on the other end, while the desired wave is generated by an internal wave-maker from mass source term of mass conservation equation. Simulated water surface profile and velocity distribution agree well with experimental measurements of Umeyama (2011), indicating that this model has a great ability in simulating wave-current interaction. The validated model is then used to investigate the effects of wave period and current velocity on regular wave-current induced water surface profile and velocity distribution. The propagation of a solitary wave traveling with a following/opposing current is also numerically investigated by this model.
View less >
View more >A numerical model is developed to study the wave propagation in the presence of a steady current flow. This model is based on Reynolds-Averaged Navier-Stokes (RANS) equations with k-ek-e turbulence closure scheme. A novel volume of fluid (VOF) method is applied to accurately capture the water free surface. The current flow is initialized by imposing a steady inlet velocity on one domain end and pressure outlet on the other end, while the desired wave is generated by an internal wave-maker from mass source term of mass conservation equation. Simulated water surface profile and velocity distribution agree well with experimental measurements of Umeyama (2011), indicating that this model has a great ability in simulating wave-current interaction. The validated model is then used to investigate the effects of wave period and current velocity on regular wave-current induced water surface profile and velocity distribution. The propagation of a solitary wave traveling with a following/opposing current is also numerically investigated by this model.
View less >
Journal Title
Ocean Engineering
Volume
75
Subject
Civil Geotechnical Engineering
Oceanography
Civil Engineering
Maritime Engineering