0

Full Content is available to subscribers

Subscribe/Learn More  >

CFD Calculations of Wave-in-Deck Load on a Jacket Platform: Impact Pressure Decrease due to Air Pocket Formation

[+] Author Affiliations
Rik Wemmenhove, Marc Lefranc

FORCE Technology Norway AS, Sandvika, Norway

Paper No. OMAE2011-49515, pp. 405-412; 8 pages
doi:10.1115/OMAE2011-49515
From:
  • ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 1: Offshore Technology; Polar and Arctic Sciences and Technology
  • Rotterdam, The Netherlands, June 19–24, 2011
  • ISBN: 978-0-7918-4433-5
  • Copyright © 2011 by ASME

abstract

The industrial problem of a jacket platform subjected to Wave-In-Deck load due to an extreme wave is studied numerically by a CFD technique. In particular, details of local flow and slamming-like hydrodynamic impact on structural members are studied. The applied CFD code ComFLOW is a Navier-Stokes equation solver with an improved Volume of Fluid (iVOF) method employed to displace and re-construct fluids free surface. Two different fluid models, single-phase (liquid+void) and two-phase (liquid+compressible gas) can be used, the latter model being capable of simulating gas entrapped in liquid. Local air pockets are formed in corners and nooks of the structure as the incoming wave front approaches. The study presents a comparison of hydrodynamic impact pressures found with and without the air entrapment. Numerical realisation of the two-phase model is considerably more expensive computationally and the study shows possibility and various aspects of its simulation. Accuracy of the numerical solution and relevance of the air pocket formation on the impact pressures and therefore on the exerted structural load are discussed.

Copyright © 2011 by ASME
Topics: Pressure , Stress , Waves

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In