An Unstructured Mesh Adaptation Algorithm for Ship Interaction Simulations

Award Information
Agency: Department of Commerce
Branch: N/A
Contract: DG1330-02-CN-0027
Agency Tracking Number: 2002-61
Amount: $50,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2002
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
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Ken Cheung
 Senior Research Engineer
 (808) 531-3017
 kcheung@oceanit.com
Business Contact
 Patrick Sullivan
Title: President
Phone: (808) 531-3017
Email: 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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