Wave Force-Phase Method for Vertical Cylinders.

Abstract

The maximum force and its phase is determined for laboratory wave forces on smooth vertical cylinders. The maximum force coefficient, and the normalized phase angle, of the force with respect to the wave particle velocity, can be related to the force transfer coefficients, C subscript d and c subscript m, for the Morison equation. This method enables the data to be plotted in a way that immediately shows the drag or inertia dependency for the wave/cylinder conditions. In addition, the C subscript d and C subscript m so derived are more likely to properly predict the maximum value of the force, although they may also increase the rms error between the measured force and the predicted force in the time domain.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
May 01, 1985
Accession Number
ADA157709

Entities

People

  • J. H. Nath

Organizations

  • Oregon State University

Tags

Communities of Interest

  • C4I
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Civil Engineering
  • Cross Correlation
  • Crossings
  • Data Analysis
  • Data Processing
  • Engineering
  • Flow
  • Fluid Flow
  • Frequency
  • Information Science
  • Particles
  • Phase Shift
  • Plastic Explosives
  • Reynolds Number
  • Spectrum Analysis
  • Steady State
  • Time Domain

Readers

  • Analytical Mechanics
  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Fluid Dynamics.