Accession Number:

ADA582021

Title:

Free-Surface Flow and Fluid-Object Interaction Modeling With Emphasis on Ship Hydrodynamics

Descriptive Note:

Journal article

Corporate Author:

CALIFORNIA UNIV SAN DIEGO LA JOLLA

Personal Author(s):

• Akkerman, I.
• Y. Bazilevs,
• Benson, D. J.
• Farthing, M. W.
• Kees, C. E.

Report Date:

2012-01-01

Pagination or Media Count:

15.0

Abstract:

This paper presents our approach for the computation of free-surfacerigid-body interaction phenomena with emphasis on ship hydrodynamics. We adopt the level set approach to capture the free-surface. The rigid body is described using six-degree-of-freedom equations of motion. An interface-tracking method is used to handle the interface between the moving rigid body and the fluid domain. An Arbitrary Lagrangian Eulerian version of the residual-based variational multiscale formulation for the Navier Stokes and level set equations is employed in order to accommodate the fluid domain motion. The free-surfacerigid body problem is formulated and solved in a fully coupled fashion. The numerical results illustrate the accuracy and robustness of the proposed approach.

Descriptors:

• *HYDRODYNAMICS
• *SHIPS
• ACCURACY
• DEGREES OF FREEDOM
• LAGRANGIAN FUNCTIONS
• NAVIER STOKES EQUATIONS
• NUMERICAL ANALYSIS
• REPRINTS
• SHIPBUILDING

Subject Categories:

• Marine Engineering
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE