Accession Number:

ADA585475

Title:

Full Scale Measurements of Wave Impact on a Flat Plate

Descriptive Note:

Final rept. Jan 2011-Dec 2012

Corporate Author:

NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD

Report Date:

2013-05-01

Pagination or Media Count:

24.0

Abstract:

Full scale measurements of wave impact loads and their statistics in real sea states are desirable for validation of numerical simulations and for application to marine engineering design problems. Measuring andor estimating wave forces on flat plates are especially problematic due to statistics of large waves in a given sea state, the intermittent statistics of wave breaking, the sensitivity of the loading relative to the phase of the incoming wave and scaling issues when translating from model scale data to full-scale. To increase our understanding of wave hydrodynamic pressures on a flat plate, an instrumented plate was deployed from the Scripps Institution of Oceanographys research pier. The instrumented plate is exposed to a wide range of wave conditions with a significant wave height Hs ranging from 3-4 m in the winter and Hs in the 1-2 m range in the summer. The instrumented flat plate is composed of three discrete modules each containing 6 pressure gages. Data are being collected over an extended period, nominally 12 months, to characterize extreme value distributions due to wave impact loading. Preliminary analysis of the data is presented and discussed.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE