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DTMB 5415M dynamic manoeuvres with URANS computation using body-force and discretised propeller models
Citation
Jin, Y and Duffy, J and Chai, S and Magee, AR, DTMB 5415M dynamic manoeuvres with URANS computation using body-force and discretised propeller models, Ocean Engineering, 182 pp. 305-317. ISSN 0029-8018 (2019) [Refereed Article]
Copyright Statement
© 2019 Elsevier Ltd. All rights reserved.
DOI: doi:10.1016/j.oceaneng.2019.04.036
Abstract
This paper presents model scale computations of self-propelled turning circle and zig-zag manoeuvres for a benchmark combatant DTMB 5415M adopting the unsteady Reynolds-Averaged Navier-Stokes (URANS) equations. A hierarchy of overset grids is utilised to allow rudder deflections while the ship undertakes 6 DOF dynamic motions. With both manoeuvres executed at approach speed corresponds to Fr ¼ 0.41, two different
propulsion techniques are applied to drive the free running vessel; the body force propeller model (BFM) and the discretised propeller model (DPM). A verification and validation study is also performed for estimating the numerical uncertainties within the URANS simulated manoeuvres. Comparisons of the results are made between computations adopting the two propulsion approaches and against experimental data from literature. The BFM propulsion method in this study is shown to under-predict the magnitude of propeller induced wake passing the rudders compared to the DPM approach which is able to resolve high fidelity flow physics behind the propellers. In general, the comparison between experimental and numerical results agree mostly within about 10% for the studied turning circle and zig-zag manoeuvres.
Item Details
Item Type: | Refereed Article |
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Keywords: | dynamic manoeuvres, unsteady Reynolds Averaged Navier Stokes, self-propulsion, overset grid, surface vessel |
Research Division: | Engineering |
Research Group: | Maritime engineering |
Research Field: | Ship and platform structures (incl. maritime hydrodynamics) |
Objective Division: | Transport |
Objective Group: | Water transport |
Objective Field: | Water transport not elsewhere classified |
UTAS Author: | Jin, Y (Mr Yuting Jin) |
UTAS Author: | Duffy, J (Associate Professor Jonathan Duffy) |
UTAS Author: | Chai, S (Professor Shuhong Chai) |
ID Code: | 132585 |
Year Published: | 2019 |
Web of Science® Times Cited: | 16 |
Deposited By: | NC Maritime Engineering and Hydrodynamics |
Deposited On: | 2019-05-14 |
Last Modified: | 2020-03-10 |
Downloads: | 0 |
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