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2019 | OriginalPaper | Buchkapitel

7. Some Results from a New Time-Domain Bilge Keel Force Model

verfasst von : David S. Greeley

Erschienen in: Contemporary Ideas on Ship Stability

Verlag: Springer International Publishing

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Abstract

A new non-linear, time domain bilge keel force model was recently developed for inclusion in the new time-domain seakeeping/maneuvering in waves code TEMPEST, being developed by NSWCCD. This bilge keel force model combines a full unsteady extension of Bollay’s non-linear low aspect ratio lifting surface theory for cases with adequate forward speed with a more conventional approach for cases with zero or low forward speed, using Morison’s equation. This paper presents some representative results from the new bilge keel force model for a surface combatant for various roll amplitudes, roll periods, and forward speeds.

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Vorheriges Kapitel Improved Maneuvering-Based Mathematical Model for Free-Running Ship Motions in Following Waves Using High-Fidelity CFD Results and System-Identification Technique

Nächstes Kapitel Some Topics for Estimation of Bilge Keel Component of Roll Damping

Belknap, W.F. and Reed, A.M. (2010), “TEMPEST – New Computationally Efficient Dynamic Stability Prediction Tool”, 11^th International Ship Stability Workshop, Wageningen, June 2010.

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Greeley, D.S. and Petersen, B.J (2010), “Efficient Time-Domain Computation of Bilge Keel Forces”, 28^th ONR Symposium on Naval Hydrodynamics, Pasadena, CA, September 2010.

Greeley,D.S., and Willemann, S.D.(2012),”Surface Ship Maneuvering Forces in Calm Water and Waves”, 29^th ONR Symposium on Naval Hydrodynamics, Gothenburg, Sweden, 26–31 August 2012.

Greeley, D.S. and Willemann, S.D.(2013),”Surface ship maneuvering forces in calm water and waves”, International Shipbuilding Progress 60, pp. 613–631.

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Himeno, Y. (1981), “Prediction of Ship Roll Damping – State of the Art”, University of Michigan Department of Naval Architecture and Marine Engineering Report No. 239, September 1981.

Irvine, M., Atsavapranee, P., Carneal, J. et al (2006), “Comparisons of Free Roll Decay Tests for Model DTMB 5415/2340/5512, and Investigation of Lateral Hydrodynamic Loads on Bilge Keels”, 26^th ONR Symposium on Naval Hydrodynamics, Rome, Italy, September 17–22, 2006.

Miller, R.W., Bassler, C.C., Atsavapranee, P. and Gorski, J.J., (2008), “Viscous Roll Predictions for Naval Surface Ships Appended with Bilge Keels using RANS”, 27^th Symposium on Naval Hydrodynamics, Seoul, Korea, 5–10 October 2008.

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Sarpkaya, T. and O’Keefe, J.L. (1996), “Oscillating Flow About Two and Three Dimensional Bilge Keels”, Journal of Offshore Mechanics and Arctic Engineering, Vol. 118, February 1996.

Titel: Some Results from a New Time-Domain Bilge Keel Force Model
verfasst von: David S. Greeley
Verlag: Springer International Publishing
Buch: Contemporary Ideas on Ship Stability
Print ISBN: 978-3-030-00514-6

Electronic ISBN: 978-3-030-00516-0

Copyright-Jahr: 2019
DOI: https://doi.org/10.1007/978-3-030-00516-0_7