0
Ocean Engineering

Numerical Solution of 3-D Water Entry Problems With a Constrained Interpolation Profile Method

[+] Author and Article Information
Qingyong Yang

Faculty of Engineering and Applied Science,  Memorial University of Newfoundland, St. John’s, Canada A1B 3X5

Wei Qiu1

Faculty of Engineering and Applied Science,  Memorial University of Newfoundland, St. John’s, Canada A1B 3X5qiuw@mun.ca

1

Corresponding author.

J. Offshore Mech. Arct. Eng 134(4), 041101 (Jul 12, 2012) (8 pages) doi:10.1115/1.4006152 History: Received October 21, 2010; Revised October 24, 2011; Published July 11, 2012; Online July 12, 2012

This paper presents the numerical solutions of slamming problems for 3D bodies entering calm water with vertical and oblique velocities. The highly nonlinear water entry problems are governed by the Navier-Stokes equations and were solved by a constrained interpolation profile (CIP)-based finite difference method on a fixed Cartesian grid. In the computation, the 3D CIP method was employed for the advection calculations and a pressure-based algorithm was applied for the nonadvection calculations. The solid body and the free surface interfaces were captured by density functions. For the pressure computation, a Poisson-type equation was solved at each time step by using the conjugate gradient iterative method. Validation studies were carried out for a 3D wedge, a cusped body vertically entering calm water, and the oblique entry of a sphere into calm water. The predicted hydrodynamic forces on the wedge, the cusped body, and the sphere were compared with experimental data.

FIGURES IN THIS ARTICLE
<>
Copyright © 2012 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Upwind cubic grid cell

Grahic Jump Location
Figure 2

Geometry of a 3D wedge

Grahic Jump Location
Figure 3

Convergence of the computed hydrodynamic forces

Grahic Jump Location
Figure 4

Vertical slamming forces on the 3D wedge

Grahic Jump Location
Figure 5

Pressure distribution on sections of a 3D wedge

Grahic Jump Location
Figure 6

Free surface elevation during the water entry of a 3D wedge

Grahic Jump Location
Figure 7

Vertical and horizontal slamming force coefficients on a sphere dropped from a height of 0.61 m

Grahic Jump Location
Figure 8

Vertical and horizontal slamming force coefficients on a sphere dropped from a height of 1.22 m

Grahic Jump Location
Figure 9

Geometry of a cusped body

Grahic Jump Location
Figure 10

Vertical slamming force coefficients on a cusped body from a height of 1.83 m

Tables

Errata

Discussions

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 Journal Articles
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