• Experimental Data of Bottom Pressure and Free Surface Elevation including Wave and Current Interactions

      Gabl, Roman; orcid: 0000-0001-9701-879X; email: Roman.Gabl@ed.ac.uk; Draycott, Samuel; orcid: 0000-0002-7372-980X; email: samuel.draycott@manchester.ac.uk; Pillai, Ajit C.; orcid: 0000-0001-9678-2390; email: A.Pillai@exeter.ac.uk; Davey, Thomas; orcid: 0000-0002-3298-1873; email: Tom.Davey@ed.ac.uk (MDPI, 2021-09-30)
      Force plates are commonly used in tank testing to measure loads acting on the foundation of a structure. These targeted measurements are overlaid by the hydrostatic and dynamic pressure acting on the force plate induced by the waves and currents. This paper presents a dataset of bottom force measurement with a six degree-of-freedom force plate (AMTI OR6-7 1000, surface area 0.464 m × 0.508 m) combined with synchronised measurements of surface elevation and current velocity. The data cover wave frequencies between 0.2 to 0.7 Hz and wave directions between 0∘ and 180∘. These variations are provided for current speeds of 0 and 0.2 m/s and a variation of the current in the absence of waves covering 0 to 0.45 m/s. The dataset can be utilised as a validation dataset for models predicting bottom pressure based on free surface elevation. Additionally, the dataset provides the wave- and current-induced load acting on the specific load cell at a fixed water depth of 2 m, which can subsequently be removed to obtain the often-desired measurement of structural loads.