Results 11 to 20 of about 2,841 (229)

Prediction of supercavitation shapes for a wide range of Froude numbers

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2022
In this study, we developed an inviscid model to predict the shape of supercavitation in a wide range of Froude numbers (Fr) based on the potential theory suggested by Logvinovich (1973). Visualization experiments were carried out in a cavitation tunnel,
Jong-Ju Yi   +4 more
doaj   +1 more source

Mach and Froude Numbers on Mars [PDF]

open access: yesThe Planetary Science Journal, 2022
Abstract Mars atmospheric global circulation models exhibit transonic jet streaks during northern winter, which motivates this study of the Mach number, Ma (the ratio of flow speed to the speed of sound), and Froude number, Fr (the ratio of flow speed to the speed of buoyancy waves), as a function of season and location.
Nasr, Camella-Rosa C.   +4 more
openaire   +1 more source

Inviscid, zero Froude number limit of the viscous shallow water system

open access: yesOpen Mathematics, 2021
In this paper, we study the inviscid and zero Froude number limits of the viscous shallow water system. We prove that the limit system is represented by the incompressible Euler equations on the whole space.
Yang Jianwei, Liu Mengyu, Hao Huiyun
doaj   +1 more source

Energy Dissipation Through Pool Downstream Vertical Gates [PDF]

open access: yesPort Said Engineering Research Journal, 2023
The hydraulic jump downstream gates leads to increase the length of stilling basin for protection hydraulic structures from failures. In this paper a new technique to increase energy dissipation between upstream and downstream through vertical gate with ...
tarek nasralla, ahmed awwad
doaj   +1 more source

A Non‐Dimensional Index for Characterizing the Transition of Turbulence Regimes in Stable Atmospheric Boundary Layers

open access: yesGeophysical Research Letters, 2023
The transition from moderate to weak turbulence regimes remains a grand challenge for stable boundary layer parameterizations in weather and climate models.
Xin Shao   +3 more
doaj   +1 more source

Vortex ring refraction at large Froude numbers [PDF]

open access: yesPhysical Review E, 2010
We have experimentally studied the impact of an initially planar axisymmetric vortex ring, incident at an oblique angle, upon a gravity-induced interface separating two fluids of differing densities. After impact, the vortex ring was found to exhibit a variety of subsequent trajectories, which we organize according to both the incidence angle, $ _i ...
Kuehn, Kerry   +3 more
openaire   +3 more sources

Research on heat transfer characteristic for hot oil spraying heating process in crude oil tank

open access: yesCase Studies in Thermal Engineering, 2016
The finite volume method and standard k−ε turbulence model are used to numerically investigate the heat transfer features of crude oil inside the floating roof tank under the hot oil spraying heating mode.
Jian Zhao   +3 more
doaj   +1 more source

A Novel Efficient Method of Estimating Suspended‐To‐Total Sediment Load Fraction in Natural Rivers

open access: yesWater Resources Research, 2023
Sediment transport load monitoring is important in civil and environmental engineering fields. Monitoring the total load is difficult, especially because of the cost of the bed load transport measurement.
Hyoseob Noh, Yong Sung Park, Il Won Seo
doaj   +1 more source

Numerical Investigation of the Resistance of a Zero-Emission Full-Scale Fast Catamaran in Shallow Water

open access: yesJournal of Marine Science and Engineering, 2021
This paper numerically investigates the resistance at full-scale of a zero-emission, high-speed catamaran in both deep and shallow water, with the Froude number ranging from 0.2 to 0.8.
Guangyu Shi   +6 more
doaj   +1 more source

Drag reduction of X-pentamaran ship model with asymmetric-hull outrigger configurations and hull separation

open access: yesEnergy Reports, 2020
The needs to reduce energy consumption have to be applied to all sector, and one of them is transportation. Shipping is the most significant component of it, and therefore optimising a ship performance and reducing its resistance is a subject for many ...
Yanuar   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy