An experimental and numerical investigation of propeller-rudder-hull interaction in the presence of tip vortex cavitation (TVC)

Yılmaz, Naz; Aktas, Batuhan; Atlar, Mehmet; Fitzsimmons, Patrick; Felli, Mario

doi:10.1016/j.oceaneng.2020.108024

Cited by 35 publications

(17 citation statements)

References 6 publications

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“…They found that pressure fluctuations on the rudder are predominantly determined by the BPF. A study by Yilmaz et al (2019a) confirmed that intense pressure fluctuations occur on the rudder surfaces. Hu et al (2019a) used large eddy simulations (LES) to study the wake of a contra-rotating propeller.…”

Section: Introductionmentioning

confidence: 87%

Numerical simulation of structural response during propeller-rudder interaction

Zhang

Chen

Wang

et al. 2021

Engineering Applications of Computational Fluid Mechanics

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The propeller wake can cause vibrations on the rudder surface, which worsen the noise and reliability. The vibration monitoring of the rudder operating in the propeller wake with fluid-structure interaction (FSI) method is still challenging. In the present study, the structural response during propeller-rudder interaction is investigated using detached eddy simulation. Three-dimensional distributions of loads, stresses, and deformations are discussed. The leading and trailing edges exhibit the strongest deformations in opposite directions, which are S-shaped. The strongest lateral deformation occurs between the tip vortex and hub vortex regions. In the tip vortex region, the dominant lateral vibrations fluctuate at the blade passing frequency (BPF) and shaft frequency (SF). However, the 75 Hz-fluctuation becomes significant at the trailing edge of the rudder. In the hub vortex region, the lateral deformation fluctuates mainly at 75 Hz except the area near the leading edge. There are weak vibrations occurring at the natural frequencies of the rudder when the natural frequencies of the rudder are much higher than the SF and BPF. However, the plate in the propeller suffers intense vibrations at the frequencies near the natural frequencies, where the natural frequencies of the plate are close to SF and BPF.

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Section: Introductionmentioning

confidence: 87%

Numerical simulation of structural response during propeller-rudder interaction

Zhang

Chen

Wang

et al. 2021

Engineering Applications of Computational Fluid Mechanics

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“…An adaptive mesh refinement strategy for the tip vortex was investigated in a study using the Newcastle test case [15], leading to the provision of highly detailed information regarding the cavity. In a further step, this approach was used by these authors to create an application-ready setup with inclusion of the hull [16].…”

Section: State Of the Artmentioning

confidence: 99%

Application of Large Eddy Simulation to Predict Underwater Noise of Marine Propulsors. Part 2: Noise Generation

Kimmerl

Mertes

Abdel‐Maksoud

2021

JMSE

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Methods to predict underwater acoustics are gaining increased significance, as the propulsion industry is required to confirm noise spectrum limits, for instance in compliance with classification society rules. Propeller–ship interaction is a main contributing factor to the underwater noise emissions by a vessel, demanding improved methods for both hydrodynamic and high-quality noise prediction. Implicit large eddy simulation applying volume-of-fluid phase modeling with the Schnerr-Sauer cavitation model is confirmed to be a capable tool for propeller cavitation simulation in part 1. In this part, the near field sound pressure of the hydrodynamic solution of the finite volume method is examined. The sound level spectra for free-running propeller test cases and pressure pulses on the hull for propellers under behind ship conditions are compared with the experimental measurements. For a propeller-free running case with priory mesh refinement in regions of high vorticity to improve the tip vortex cavity representation, good agreement is reached with respect to the spectral signature. For behind ship cases without additional refinements, partial agreement was achieved for the incompressible hull pressure fluctuations. Thus, meshing strategies require improvements for this approach to be widely applicable in an industrial environment, especially for non-uniform propeller inflow.

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“…The dynamic positioning propulsion system consists of multiple thrusters with a thrust loss of more than 45% between adjacent thrusters [18]. The qualitative effects of propeller-propeller [19,20] and propeller-hull [21,22] interference have been examined, but the complexity of the propeller operating environment in an ROV calls for a different analysis. The hydrodynamics become complicated as the ROV approaches the structure [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of the Hydrodynamic Behavior of a Remotely Operated Vehicle in Multi-Directional Flow

Cao¹,

Lyu²,

Peng³

et al. 2023

Fluid Dynamics &Amp; Materials Processing

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In recent years, Remotely Operated Vehicles (ROVs) have played an increasingly important role in the construction and monitoring of underwater pile foundations. However, due to the open frame structure of such vehicles, a gap of knowledge still exists with regard to their hydrodynamic behavior. In this study, the hydrodynamic stability of such vehicles is investigated numerically by means of a multiple reference frame method. The hydrodynamic characteristics of the ROV when it moves horizontally and upward in the vertical plane are examined. It is found that there is interference between the horizontal and vertical thrusters of the ROV. There is also interference between the propeller thrust and drag (or lift). The effect of the vertical thrusters can increase the horizontal thrust by about 5%. The horizontal thrusters create a low-pressure area below the body, which can make vertical drag experienced by the ROV significantly higher.

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An experimental and numerical investigation of propeller-rudder-hull interaction in the presence of tip vortex cavitation (TVC)

Cited by 35 publications

References 6 publications

Numerical simulation of structural response during propeller-rudder interaction

Numerical simulation of structural response during propeller-rudder interaction

Application of Large Eddy Simulation to Predict Underwater Noise of Marine Propulsors. Part 2: Noise Generation

Numerical Analysis of the Hydrodynamic Behavior of a Remotely Operated Vehicle in Multi-Directional Flow

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