Accurate Capture of Propeller-Rudder Interaction using a Coupled Blade Element Momentum-RANS Approach
نویسندگان
چکیده
منابع مشابه
Accurate capture of rudder-propeller interaction using a coupled blade element momentum-RANS approach
Ship rudders are almost always placed downstream of the propeller so they can take advantage of the increased local velocity due to the presence of the propeller race. The methods discussed in this paper replicate the flow integrated effects of the propeller which generates an accelerated and swirled onset flow onto the rudder. As long as the radial variation in axial and tangential momentum (i...
متن کاملAccurate capture of propeller-rudder interaction using a coupled blade element momentum-RANS approach
The physically correct capture of propeller-rudder interaction is important if ship self-propulsion parameters are to be accurately predicted. Full resolution of a time accurate computational fluid dynamics calculation based on the Reynolds Averaged Navier Stokes equations requires a significant computational resource. The axial and tangential accelerations generated in the flow by the passage ...
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The shape of wake behind a wind turbine is normally assumed to have a hat shape for the models used in wind farm layout optimization purposes; however, it is know from experimental tests and numerical simulations that this is not a real assumption. In reality, the results of actual measurements and detailed numerical simulation show that the velocity in wake region has a S-shape profile. Th...
متن کاملEvaluation of manoeuvring coefficients of a self-propelled ship using a Blade Element Momentum propeller model coupled to a Reynolds averaged Navier Stokes flow solver
Alexander Phillips1, Stephen R. Turnock1, Maaten Furlong2 1 School of Engineering Sciences, University of Southampton 2National Oceanography Centre, Southampton Abstract The use of an unsteady Computational Fluid Dynamic analysis of the manoeuvring performance of a self-propelled ship requires a large computational resource that restricts its use as part of a ship design process. A method is pr...
متن کاملA semi-analytical model for velocity profile at wind turbine wake using blade element momentum
The shape of wake behind a wind turbine is normally assumed to have a hat shape for the models used in wind farm layout optimization purposes; however, it is know from experimental tests and numerical simulations that this is not a real assumption. In reality, the results of actual measurements and detailed numerical simulation show that the velocity in wake region has a S-shape profile. The pr...
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ژورنال
عنوان ژورنال: Ship Technology Research
سال: 2010
ISSN: 0937-7255,2056-7111
DOI: 10.1179/str.2010.57.2.005