Results 11 to 20 of about 101 (80)
A thorough numerical introspection for assessing the particular issues of large flow separations around a submersible hull by using various turbulence models is described.
Adrian Lungu
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In this study, the high-fidelity numerical methods are developed to investigate the tip vortex cavitation (TVC) inception and noise of underwater propellers, namely, Model-A and Model-B, which are designed to investigate the effects of sweep angle on ...
Garam Ku +3 more
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On the basis of a full-appendage DARPA SUBOFF model (DTRC model 5470), a scale (λ = 0.535) semi-autonomous submarine free-running model (SFRM) was designed for testing its manoeuvrability and stability in the constrained water.
Yu-Hsien Lin, Yu-Ting Lin, Yen-Jun Chiu
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Tripping effects on model-scale studies of flow over the DARPA SUBOFF
Trip-resolved large-eddy simulations of the DARPA SUBOFF are performed to investigate the development of turbulent boundary layers (TBLs) in model-scale studies. The primary consideration of the study is the extent to which the details of tripping affect statistics in large-eddy simulations of complex geometries, which are presently limited to moderate
Nicholas Morse, Krishnan Mahesh
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Numerical Flow Characterization around a Type 209 Submarine Using OpenFOAM
The safety of underwater operation depends on the accuracy of its speed logs which depends on the location of its probe and the calibration thoroughness.
Ruben J. Paredes +3 more
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Hydrodynamic Investigation of a Submarine Moving Under Free Surface [PDF]
Submerged bodies are commonly used in many fields such as scientific researches, military and commercial applications. Especially in military applications, submarines have a significant role as a silent and deterrent vehicle. Contrary to popular belief,
Ali DOĞRUL
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A computational fluid dynamics (CFD)-based simulation using a finite volume code for a full-appendage DARPA (Defense Advanced Research Projects Agency) SUBOFF model was investigated with a sliding mesh model in a multi-zone fluid domain.
Yu-Hsien Lin, Xian-Chen Li
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Numerical Simulation of Hydrodynamic Forces on an Underwater Vehicle Near the Free Surface [PDF]
Underwater Vehicles (UVs), including Autonomous and Remotely Operated Vehicles, are increasingly utilized in marine applications such as exploration, surveying, and defense.
M. S. Ahmad +5 more
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ON SELF-PROPULSION ASSESSMENT OF MARINE VEHICLES
Estimation of ship self-propulsion is important for the selection of the propulsion system and the main engine so that the ship can move forward with the required speed.
Omer Kemal Kinaci +3 more
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DES-based computation of the flow around the DARPA suboff
Abstract Flow modelling is a key issue not only for the correct prediction of hull-propeller interactions, manoeuvring characteristics and the flow field in the stern region of any marine vehicle, but also for the correct estimation of the fuel consumption.
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