NDLI: Three-dimensional hydrodynamic model for prediction of falling cylinder through water column

Content Provider	IEEE Xplore Digital Library
Author	Chu, P.C. Chenwu Fan Evans, A. Gilles, A.F. Fleischer, P.
Copyright Year	2003
Description	Author affiliation: Naval Postgraduate Sch., Monterey, CA, USA (Chu, P.C.; Chenwu Fan; Evans, A.; Gilles, A.F.)
Abstract	A three dimensional hydrodynamic model based on triple coordinate systems is developed to predict translation and orientation of falling rigid cylinder through the water column: earth-fixed coordinate (E-coordinate), cylinder's main-axis following coordinate (M-coordinate), and hydrodynamic force following coordinate (F-coordinate). Use of the triple coordinate systems and the transforms among them leads to the simplification of the dynamical system. The body and buoyancy forces and their moments are easily calculated using the E-coordinate system. The hydrodynamic forces (such as the drag and lift forces) and their moments are easily computed using the F-coordinate. The cylinder's moments of gyration are simply represented using the M-coordinate. A recursive model is developed on the base of the triple coordinate transform to predict the cylinder's translation and orientation. To evaluate the recursive model, a cylinder-drop experiment was conducted at the Naval Postgraduate School swimming pool in June 2001. Comparison between the modeled and observed results shows a great potential of using the triple coordinate transform.
Sponsorship	Dept. of the Navy Sci. and Technol. Coalition for Enhanced Marine Resources Orincon Ceros Harbour Offshore Inc
Starting Page	2047
Ending Page	2057
File Size	575911
Page Count	11
File Format	PDF
ISBN	0933957300
DOI	10.1109/OCEANS.2003.178217
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-09-22
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	MTS
Subject Keyword	Hydrodynamics Predictive models Nonlinear equations Drag Fluid dynamics Nonlinear dynamical systems Gravity Cranes Digital recording Digital cameras
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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