Results 21 to 30 of about 1,010 (251)

Direct Sailing Variable Acceleration Dynamics Characteristics of Water-Jet Propulsion with a Screw Mixed-Flow Pump

open access: yesApplied Sciences, 2019
Strong nonlinearity and the relevance of time-varying dynamic parameters in the maneuverable process of water-jet propulsion were major problems encountered in the prediction of variable acceleration dynamics characteristics.
Wei Han   +5 more
doaj   +1 more source

Submerged cutting characteristics of abrasive suspension jet

open access: yesNihon Kikai Gakkai ronbunshu, 2015
An abrasive suspension jet (ASJ) formed by propelling abrasive suspension through a nozzle has a greater cutting capability than the conventional abrasive water jet.
Seiji SHIMIZU   +3 more
doaj   +1 more source

Numerical simulation of steam submerged jet and condensation

open access: yesZhongguo Jianchuan Yanjiu, 2019
[Objectives] During the discharging of ship-used steam power,steam jet condensation was a common physical process. In order to fully grasp the fundamental physical phenomena within steam submerged jet and condensation under open space,CFD simulation with
Wang Guanghuai   +4 more
doaj   +1 more source

Numerical simulation of coal breaking characteristics by continuous water jet based on ALE algorithm

open access: yesMeikuang Anquan
In order to explore the influence of environmental media on the characteristics of water jet coal breaking, ALE algorithm and LS-Dyna software are used to carry out numerical simulation of continuous water jet impact coal breaking and the characteristics
Congmeng HAO   +3 more
doaj   +1 more source

Numerical Simulation Study of the Horizontal Submerged Jet Based on the Wray–Agarwal Turbulence Model

open access: yesJournal of Marine Science and Engineering, 2022
The horizontal submerged jet (HSJ), as a special form of jet, is widely used in aerospace, food and drug, water engineering, and other industries. In order to further understand the mechanism of the HSJ, the Wray–Agarwal turbulence model was used to ...
Bo Hu   +8 more
doaj   +1 more source

Entrainment and Mixing in a Round Submerged Water Jet

open access: yesChemical engineering, 1966
Donaldらの装置を改良した角形水槽を用いて。円形水ジェットについて実験を行ない, 次の結諭を得た。1) ジェット角度はほぼ14Gである。2) 軸方向と半径方向の速度分布ならびに濃度分布を測定し、em, e, とScturbを算出した。その結果, 半径方向分布はどれもガウスの誤差曲線でほぼ近似できることを認めた。3) ジェット同伴量を直接測定し実験式を与えるとともに, 流速分布より同伴量式を求めほぼ両者が一致することを確かめた。
Okita, Naosumi, Ito, Shiro
openaire   +2 more sources

Induced Circulation by Plunging and Submerged Jets in Circular Water Storage Tanks Using CFD

open access: yes, 2022
Water circulation in storage tanks significantly impacts water quality in distribution networks since old water tends to have low residual chlorine concentrations that are insufficient to neutralize microbial regeneration.
Dídia I. C. Covas, Nuno M. C. Martins
core   +1 more source

Numerical Study of the Normal Impinging Water Jet at Different Impinging Height, Based on Wray–Agarwal Turbulence Model

open access: yesEnergies, 2020
As a kind of water jet technology with strong impinging force and simple structure, the submerged impinging water jet can produce strong scouring action on subaqueous sediments.
Hongliang Wang   +4 more
doaj   +1 more source

Comparison of the main jet performances of non-submerged and submerged water jet.

open access: yes, 2018
Comparison of the main jet performances of non-submerged and submerged water jet.
Urso Campos (5429951)   +2 more
core   +1 more source

Effect of 3D submerged jet shape on maximum pressure of plunge pool bottom

open access: yesAIP Advances, 2023
Maximum pressure is one of the key factors that affect jet scouring. Previous studies have focused on the attenuation characteristics of the submerged jet, but there are few studies on the influence of the nappe shape on the pressure of the plunge pool ...
Pengfei Xia   +4 more
doaj   +1 more source

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