Vibration reduction and efficiency enhancement effects of twisted rudders in submarines under small rudder angle conditions

Ocean Engineering, Journal Year: 2024, Volume and Issue: 307, P. 118042 - 118042

Published: May 17, 2024

Language: Английский

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Computational Fluid Dynamics Investigation of Hydrodynamic Forces and Moments Acting on Stern Rudder Plane Configurations of a Submarine

Applied Sciences, Journal Year: 2024, Volume and Issue: 14(10), P. 4292 - 4292

Published: May 18, 2024

This study presents the predicted hydrodynamic characteristics of different rudder plane configurations on stern a full-scale submarine in deep water, which are obtained using Reynolds-Averaged Navier–Stokes method Ansys Fluent Solver. First, results for X-rudder configuration verified according to previous numerical and experimental order assess accuracy simulation procedure. The plane, Y-rudder Cross-rudder water with deflection angles ranging from −21 degrees +21 then simulated. Next, forces moments Cross-plane, X-plane, Y-plane through analyzed Taylor’s expansion estimate coefficients. demonstrate that X-force X-plane is larger than corresponding acting Cross-plane configurations. Meanwhile, Y-force Z-force significantly greater left same tendency can be seen moment about y- z-axes. However, roll induced by under configuration.

Language: Английский

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The comparative research on the VPMM experiment and numerical simulation of the SUBOFF model

Journal of Physics Conference Series, Journal Year: 2024, Volume and Issue: 2756(1), P. 012055 - 012055

Published: May 1, 2024

Abstract To ensure optimal maneuvering performance of underwater vehicles, it is essential to obtain highly precise hydrodynamic coefficients for constructing the equations motion. The principal approach acquiring these through Planar Motion Mechanism (PMM) test. subject this paper SUBOFF full appendage model. related motion, a Vertical (VPMM) test conducted in circulating water tank. In addition, numerical simulation typical pure heaving and pitching maneuverability performed model by programming its motion UDF using Fluent’s dynamic mesh technology. results calculated are compared data obtained from Key Laboratory Underwater Robotics Technology Harbin Engineering University. calculation show high credibility tank VPMM corresponding has certain practical engineering accuracy, which can break limitations also provides valuable experience technical reference prediction other vehicles.

Language: Английский

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Influence of twisted rudder on propeller line spectrum noise and rudder control force in submarines

Ocean Engineering, Journal Year: 2024, Volume and Issue: 314, P. 119692 - 119692

Published: Nov. 12, 2024

Language: Английский

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