Results 1 to 10 of about 3,877 (226)
Effect of unsteady cavitation on hydrodynamic performance of NACA 4412 Hydrofoil with novel triangular slot [PDF]
HeliyonThis study demonstrates the hydrodynamic performance of a modified NACA 4412 hydrofoil and compares it with the base NACA 4412 hydrofoil in the presence of cavitation.
Sayan Biswas, R. Harish
doaj +2 more sources
International Journal of Naval Architecture and Ocean Engineering, 2018 Hydrofoil is the direct component to generate thrust for underwater glider. It is significant to improve propulsion efficiency of hydrofoil. This study optimizes the shape of a hydrofoil using Free-Form Deformation (FFD) parametric approach and Surrogate-
Xinjing Wang, Peng Wang
exaly +3 more sources
Analysis of Bulb Turbine Hydrofoil Cavitation
Applied Sciences, 2021 The influence of a bulb runner blade hydrofoil shape on flow characteristics around the blade was studied. Experimental work was performed on a bulb turbine measuring station and a single hydrofoil in a cavitating tunnel.
Andrej Podnar +3 more
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Journal of Marine Science and Engineering, 2019 To improve the energy extraction performance of the oscillating hydrofoil, the lift force that acts on the oscillating hydrofoil is analyzed. The pressure difference between the oscillating hydrofoil‘s opposing surfaces is dominant to generate the ...
Xu Jianan, Zhan Yong, Jianan Xu
exaly +3 more sources
Control mechanisms of different bionic structures for hydrofoil cavitation [PDF]
Ultrasonics SonochemistryCavitation limits the efficient and stable operation of rotating machinery. The exploration of control methods for hydrofoil cavitation is important for improving the performance of hydraulic machinery.
Qi Yang +5 more
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Kajian Eksperimental Pengaruh Posisi Perletakan Hydrofoil Pendukung Terhadap Hambatan Kapal
Jurnal Teknik ITS, 2012 Penggunaan hydrofoil merupakan salah satu cara untuk bisa mengurangi hambatan kapal pada kondisi kecepatan yang direncanakan. Gaya lift yang dimiliki hydrofoil dapat mengurangi WSA kapal pada kondisi foilborne sehingga hambatan yang diterima hanya akan ...
Slamet Agus Saputro, Ketut Suastika
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Various Wavy Leading-Edge Protuberance on Oscillating Hydrofoil Power Performance [PDF]
Journal of Applied Fluid Mechanics, 2023 This paper is presented to compare various wavy leading-edge protuberances on oscillating hydrofoil performance and power efficiency. The unsteady turbulent 3D flow simulations were carried out by using the StarCCM+ software.
A. Abbasi +3 more
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Energies, 2023 The unsteady RANS equations for a two-dimensional hydrofoil were solved using ANSYS Fluent to model and simulate the hydrofoil at a constant Reynolds number, Re, of 2 × 105 and a fixed reduced frequency, f*, of 0.14.
Arun Raj Shanmugam +2 more
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Boundary Element Method Analysis of 3D Effects and Free-Surface Proximity on Hydrofoil Lift and Drag Coefficients in Varied Operating Conditions [PDF]
, 2023 The use of hydrofoils to enhance ship performance raises the scientific issue of free-surface proximity, which is important to consider during the design stage, to feed velocity prediction programs, for instance.
BOT, Patrick +3 more
core +1 more source
Analysis of cavitation number and scale effect of hydrofoil cavitation initiation
Zhongguo Jianchuan Yanjiu, 2022 ObjectiveWhen the cavitation number drops to a certain critical value, the pressure at the leading edge of an underwater hydrofoil will decrease and cavitation will occur.
Shengming CHANG +4 more
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