Wave flume

About: Wave flume is a research topic. Over the lifetime, 1627 publications have been published within this topic receiving 23335 citations.

Wave Forces on Submerged Structures

Abstract: Magnitude and characteristics of forces resulting from oscillatory waves on submerged barge-like structures; wave profiles and variation with time of resulting horizontal and vertical forces for various wave heights, wave periods, and locations of barge with respect to water surface; effects of rounding sides and of inclusion of slot in one end of barge; horizontal force measurements for flat plate.

Impacts of a Wave Farm on Waves, Currents and Coastal Morphology in South West England

Abstract: This study investigates impacts of a wave farm on waves, currents and coastal morphology adjacent to the wave farm, which is located in the Southwest of England (the Wave Hub) In this study, we focus on the interaction between waves and tides due to the presence of the wave farm and its effects on wave radiation stresses, bottom shear stresses and consequently on the sediment transport and the coast adjacent to the wave farm, using an integrated numerical modelling system The modelling system consists of the near-shore wave model SWAN, the ocean circulation model ROMS and a sediment transport model for morphological evolution The results show that tidal elevation and tidal currents can have a significant effect on waves and that tidal forcing and waves have a significant effect on bottom shear stresses Waves can impact on the processes related to the bottom boundary layer and mixing intensity in the water column The wave farm has an impact on the gradients of radiation shear stresses and bottom shear stresses that modify current speeds and wave heights, which in turn impact on the near-shore sediment transport and the resulting morphological changes Bed load transport rates show a decrease when the wave farm is present, even during storm conditions The results highlight the importance of the interactions between waves and tides when modelling coastal morphology with presence of wave energy devices

Studies on Resonant Water Motion Between a Ship and a Fixed Terminal in Shallow Water

Abstract: This work focuses on the hydrodynamical problem of a Liquid Natural Gas (LNG) carrier near a Gravity Based Structure (GBS) -type offshore terminal subject to incoming waves in medium deep to shallow water conditions. The work is restricted to 2D, and the ship is restrained from moving. The resonant behavior of the fluid in the gap between the ship and the terminal is investigated. The problem is investigated by means of a numerical model and model tests. Potential theory is assumed, and a linear as well as a nonlinear time-domain numerical wavetank based on a boundary element method with a mixed Eulerian-Lagrangian approach is implemented for this purpose. Model tests (near 2D) of a midship section near a vertical wall are carried out in a 26.5 m long and 0.595 m wide wave flume in model scale 1:70. In full scale the ship beam is 45 m and the ship draft is 12 m. The ship model is constructed in such a way as to avoid flow separation, i.e., no sharp corners. Several parameters are varied: water depth, wave period, and wave steepness. Wave elevation is measured at 12 locations.