Underwater Bomb Trajectory Prediction for Stand-off Assault (Mine/IED) Breaching Weapon Fuse Improvement (SOABWFI)
Loading...
Authors
Chu, Peter C.
Ray, Gregg
Fan, Chenwu
Subjects
Mines, IED, Body-Flow Interaction, Bomb Manoeuvring, Body Trajectory and
Orientation, Drag/Lift Coefficients, Inverse Modeling, Bomb Drop Experiments, SOABWFI
Advisors
Date of Issue
2008
Date
2008
Publisher
Language
Abstract
To support the development and evaluation of the Stand-off Assault Breaching Weapon Fuse
Improvement (SOABWFI) program, a 6-DOF computational bomb maneuvering model is
developed to accurately predict the trajectory pattern, velocity and orientation of the warheads
when they are released from any of the various dispense concepts. Tests such as 1/12th scaled
MK-84 bomb experiments with various water-entry velocities at SRI (near 1000 ft/s) and NPS
(near 400 ft/s) provide good data on bomb trajectory and some insight into bomb orientation.
With these data, semi-empirical formulas are derived for calculating drag/lift coefficients with
supercavitation and bubbles, and used by the 6-DOF bomb trajectory model. This model
development provides a tool to determine accurately underwater (full-size) bomb trajectory path
so that the final detonation position relative to target position can be predicted.
Type
Article
Description
Series/Report No
Department
Oceanography
Organization
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Chu, P.C., G. Ray, C.W. Fan, and P. Gefken: Underwater bomb trajectory prediction for stand-off assault breaching weapon fuse improvement (SOABWFI), Eighth Monterey International Symposium on Technology and Mine Problems, Society for Counter-Ordnance Technology, Monterey, California, 5-7 May 2008 (download).
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.