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Advanced Fluid Modeling Capability for Underwater Shock Analysis of Naval Ships

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00014-02-C-0543
Agency Tracking Number: N013-0006
Amount: $400,000.00
Phase: Phase II
Program: STTR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Solicitation Year: N/A
Award Year: 2002
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
375 Hudson St FL 12
New York, NY 10014
United States
DUNS: 061226106
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Ivan Sandler
 (212) 367-3078
Business Contact
 Raymond Daddazio
Title: Director of Research
Phone: (212) 367-3094
Research Institution
 Florida State University
 Mark Sussman
208 Love Building
Tallahassee, FL 32306
United States

 (850) 644-7194
 Nonprofit College or University

An existing 3D Eulerian code for computing incompressible flows will be enhanced to enable underwater explosion simulations, focusing especially on free-field bulk cavitation, bubble growth and collapse, and bubble jetting. The emphasis will be onimproving the accuracy and efficiency of the code's algorithms for simulating underwater shock. Currently the code includes level set methods, adaptive mesh refinement and semi-implicit time integration. The code will be enhanced to include compressibilityand shock-wave effects by implementing "all-speed" methods and high-accuracy shock-capturing schemes based on ENO and WENO algorithms. Equations of state will be compatible with the U.S. Navy's underwater shock benchmark problems. The code will also bemade compatible with a standard interface that the Navy uses to do fluid-structural analysis.BENEFITS: Anticipated benefits are improved analysis capabilities, needed for evaluating and modifying the designs of U.S. Navy surface ships, submarines, andtheir internal components. These capabilities will be of interest to commercial shipbuilders, and will be useful in any serious effort to reduce ship exposure to terrorist bombings. Reduced production and operating costs, as well as lives saved, areanticipated.

* Information listed above is at the time of submission. *

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