Results 41 to 50 of about 5,184 (220)

Numerical Simulation of the Resistance Performance of a Fully Submerged Hydrofoil Catamaran with Cavitation Effects

open access: yesPolish Maritime Research
Cavitation restricts the maximum speed of a hydrofoil boat, and causes severe degradation of its hydrodynamic performance at high velocities. Most existing studies of hydrofoil catamaran design have been performed under non-cavitating conditions, leading
Xu Yangfan   +6 more
doaj   +1 more source

Analysis on effect of shaft strut hydrofoil on anti-cavitation performance for surface ship

open access: yesZhongguo Jianchuan Yanjiu, 2019
[Objectives] In order to improve the anti-cavitation performance of shaft strut on a surface ship,[Methods] we study the front strut, compare the pressure distribution and anti-cavitation performance of the improved hydrofoil with those of the original ...
ZHANG Kai   +3 more
doaj   +1 more source

Numerical analysis of drag reduction of hydrofoil appendage for high-speed ship

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectiveIn order to reduce the wave-making resistance of high-speed ships, this paper proposes an innovative hydrofoil appendage with a drag reduction effect.
Qian CHEN   +3 more
doaj   +1 more source

Cavitation aggressiveness on a hydrofoil [PDF]

open access: yesIOP Conference Series: Earth and Environmental Science, 2019
To improve the analyses of the cavitation erosion phenomena, cavitating flows around an instrumented hydrofoil were studied experimentally and numerically. The experiments allowed the assessment of cavitation aggressiveness by measurements from PVDF pressure sensors.
Carrat, Jean-Bastien   +3 more
openaire   +3 more sources

Skeletons of swiftly swimming sharks: Three‐dimensional analysis of lamniform vertebral morphology and mineral architecture

open access: yesJournal of Anatomy, EarlyView.
We examined morphology, 3D arrangement, and mineral amount in cartilaginous vertebrae from four lamniform shark families (Alopiidae, Carchariidae, Cetorhinidae, and Lamnidae). We identified family‐specific mineralization trends, and regional patterning of structures along the column.
Jamie L. Knaub   +6 more
wiley   +1 more source

Geometry of Breaking Waves Under Natural Sea Conditions

open access: yesGeophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Wave breaking geometry is critical for understanding air‐sea interactions, yet its characterization in the field remains limited. This study analyzes the geometry of 16,369 active breaking waves, measured via stereo imagery in the Black Sea under diverse conditions.
P. V. Guimarães   +5 more
wiley   +1 more source

Study of hydrofoil boundary layer transition using different turbulence models [PDF]

open access: yes, 2019
Boundary layer transition is one of the key factors affecting the hydrodynamic characteristics of hydrofoil. In order to explore the capability of a transition model coupled to different turbulence models in the prediction of hydrofoil boundary layer ...
Ye, Changliang   +1 more
core   +1 more source

A Theory for Hydrofoils of Finite Span [PDF]

open access: yesJournal of Mathematics and Physics, 1954
The program of this report is as follows: After a brief survey of the available theoretical and experimental information on the characteristics of hydrofoils, the theory for a hydrofoil of finite span will be formulated. The liquid medium is assumed to be incompressible and nonviscous and of infinite depth.
openaire   +2 more sources

Evolution and Influence Analysis of Skid Resistance Performance in Steel Slag Ultra‐Thin Wearing Course Based on XGBoost‐SHAP Framework

open access: yesApplied Research, Volume 5, Issue 4, August 2026.
An XGBoost‐SHAP framework accurately predicted skid resistance evolution in steel slag ultra‐thin wearing courses under accelerated loading. Surface texture amplitude (Rz, Rq) and loading cycles dominated BPN variation, while 50% steel slag replacement provided a cost‐effective balance between anti‐skid durability and material use.
Wang Wang, Xinquan Xu
wiley   +1 more source

Preparation of experimental and numerical research on unsteady cavitating flow around hydrofoil

open access: yesEPJ Web of Conferences, 2015
This paper describes the preparation of the experimental setup and the results of the CFD analysis for the investigation of the unsteady cavitating flow around a prismatic NACA 2412 hydrofoil at different flow conditions.
Komárek Martin   +5 more
doaj   +1 more source

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