An Unstructured Mesh Adaptation Algorithm for Ship Interaction Simulations

Award Information
Agency:
Department of Commerce
Branch
n/a
Amount:
$50,000.00
Award Year:
2002
Program:
SBIR
Phase:
Phase I
Contract:
DG1330-02-CN-0027
Agency Tracking Number:
2002-61
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Oceanit Laboratories, Inc.
1001 Bishop Street, Pacific Tower, Suite 2970, Honolulu, HI, 96813
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Ken Cheung
Senior Research Engineer
(808) 531-3017
kcheung@oceanit.com
Business Contact:
Patrick Sullivan
President
(808) 531-3017
psullivan@oceanit.com
Research Institution:
n/a
Abstract
The dynamics of ships interacting with other ships and with harbor structures and boundaries is a difficult computational fluid dynamics (CFD) problem for several reasons: geometric complexity, modeling of the free surface, and large Reynolds numbers involved. The proposed research will employ several approaches and techniques to simplify the problem to a manageable level while maintaining modeling fidelity. Among these are to initially use a potential flow approximation (i.e., neglect the effects of viscosity), linearize the free surface and develop an unstructured deforming adaptive mesh algorithm for relative ship motion. Of these, the three- dimensional deforming mesh will be the greatest challenge, and Phase I will concentrate on developing this method and demonstrating the feasibility of using this method to accurately model multiple vessels in a harbor environment. Successful development will pave the way for a time-varying, unsteady, 3-D flow solver employing the mesh algorithm.

* information listed above is at the time of submission.

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