Fluid-interaction and cavitation effects on a surface ship model due to an underwater explosion
By:  Leonard D. Santiago
Publisher: Naval Postgraduate School; Available from National Technical Information Service
Published: 1996
Place of publication: Monterey, Calif; Springfield, Va
Language: eng
Number of pages: 136
Description: A surface ship subjected to an underwater explosion is exposed to shock waves over a      short period of time which can vary in magnitude based on charge type, size, and location.      The energy of those waves impinging upon the hull is transmitted throughout the ship's      structure and vital equipment. The dynamics of the shock waves also influence the fluid      surrounding the outer hull of the ship, creating an area of cavitating fluid. The combination of      the shock waves, bubble pulsations, and cavitating fluid induce shipwide vibrations on hull      supports and mission essential equipment which may become inoperative. In view of      congressional requirements for new ship designs and systems to be shock tested, this thesis      investigates the modeling of a preliminary design (Flight I) of the Arleigh Burke Destroyer      (DDG 51) exposed to an underwater explosion. The effects of cavitation on one and two      dimensional models is explored to determine if cavitation effects are substantially important      to a three dimensional ship model. Validation of modeling underwater explosion effects      upon a ship model can provide potential insight and savings in cost for future live fire testing      and evaluation of the Flight IIA (DDG 79) design of the Arleigh Burke Destroyer.
Notes: Thesis advisor(s): Young S. Shin.

"September 1996."

Thesis (M.S. in Mechanical Engineering) Naval Postgraduate School, September 1996.

Includes bibliographical references.

Approved for public release; distribution unlimited.

Also available online.

Mode of access: World Wide Web.

System requirements: Adobe Acrobat Reader.

US Navy (USN) author.

dk/dk cc:9996 01/15/97