Fluid–structure interaction of a flexible rotor in water

Eldemerdash, A.S.; Leweke, Thomas

doi:10.1016/j.jfluidstructs.2021.103259

Cited by 10 publications

(1 citation statement)

References 23 publications

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“…It can easily cause measurement errors in the velocimeter and even damage it [5,6]. There are many kinds of velocimeters on the market, including traditional propeller velocimeters, acoustic velocimeters, Doppler velocimeters, radar wave velocimeters, and rotor velocimeters [7][8][9]. When the propeller velocimeter is placed in the water channel, the water flow via the propeller of the instrument and the propeller will produce a revolution.…”

Section: Introductionmentioning

confidence: 99%

An Innovative Designed Velocimeter Application for Set Net Fishery

Chiu,

Liao,

Chen

et al. 2023

JMSE

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This article is aimed at the problems encountered by the fishing ground of set nets in Taiwan when the set net operators need to work when the weather is bad at sea. We developed a velocimeter that can be placed in the ocean for a long time and change sensing directions with the flow direction. The self-designed velocimeter has advantages, such as simple operation, low cost, and easy maintenance. With wireless monitoring and an early warning system, it can monitor current velocity, flow direction, sea temperature, and displacement. The data is transmitted back to the operator through the radio transmission module as a basis for dispatching personnel to go out to sea for fishing. To prevent the set net from drifting into the open sea due to bad weather, a GPS module is used to monitor the current location of the set net. If the waves wash away the set net, the warning signal can be received the first time to prevent the floating set net from endangering the safety of ship navigation and the survival of marine life. This innovative technology aligns with SDG 14, which aims to “conserve and sustainably use the oceans, seas, and marine resources for sustainable development”.

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Section: Introductionmentioning

confidence: 99%

An Innovative Designed Velocimeter Application for Set Net Fishery

Chiu,

Liao,

Chen

et al. 2023

JMSE

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Exploring the influence of flexibility on rotor performance in turbulent flow environments

Fakhfekh,

Ben Amira,

Abid

et al. 2025

European Journal of Mechanics - B/Fluids

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Stability analysis of an anisotropic rotor partially filled with viscous incompressible fluid based on Andronov-Hopf bifurcation

Wang

Guo

Jiang³

2021

Physics of Fluids

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Instability of a rotor partially filled with viscous incompressible fluid is a common issue in rotary machines, which leads the amplitude of perturbations to increase exponentially. Currently, different models of an isotropic rotor partially filled with fluid are established to investigate its stability, but the research on the stability of an anisotropic rotor is rarely reported. To explore the instability of an anisotropic rotor partially filled with fluid, a continuous model is established to represent an isotropic rotor system partially filled with fluid and dimensionless hydrodynamic forces are calculated, and then D-decomposition method is introduced to obtain stable and unstable regions of this isotropic rotor. The transitions of different regions are called as Andronov-Hopf bifurcation. Then, a novel predicting model, where the elliptical motion of a rotor partially with fluid is assumed, is established to obtain the same unstable regions, comparing with the results from D-decomposition method. The correctness of this novel predicting method for an isotropic rotor partially filled with fluid is verified by this comparison. The influence of dimensionless damping coefficient on the stability is also analyzed. Last, this novel predicting model is applied to an anisotropic rotor partially filled with fluid, the unstable regions of rotational frequencies are analyzed. The results show that dimensionless damping coefficient and dimensionless stiffness coefficient have significant influences on the stability of a rotor partially filled with fluid, there especially exist two unstable regions for a lower dimensionless damping coefficient. In addition, the asymmetric degrees of an anisotropic rotor have great influences on the unstable low boundary.

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Fluid–structure interaction of a flexible rotor in water

Cited by 10 publications

References 23 publications

An Innovative Designed Velocimeter Application for Set Net Fishery

An Innovative Designed Velocimeter Application for Set Net Fishery

Exploring the influence of flexibility on rotor performance in turbulent flow environments

Stability analysis of an anisotropic rotor partially filled with viscous incompressible fluid based on Andronov-Hopf bifurcation

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