Results 1 to 10 of about 844 (69)

STUDY ON CHARACTERISTICS OF A DOWNHOLE VORTEX JET PUMP [PDF]

open access: yesRomanian Journal of Petroleum & Gas Technology, 2021
This article analyzes the possibility of increasing the efficiency of using downhole jet pumps by swirling the injected flow. To analyze the peculiarities of the local swirling of injected flow, design and technological parameters in the form of the ...
Denis Panevnyk
doaj   +1 more source

Experimental study on erosion-corrosion behavior of liquid–solid swirling flow in pipeline

open access: yesMaterials & Design, 2022
A multifactorial experimental research on erosion-corrosion behavior of liquid–solid swirling flow in pipeline was carried out by a circulating loop system in combination with a variety of test methods.
Hao Zhou   +5 more
doaj   +1 more source

Fluid-dynamic optimal design of helical vascular graft for stenotic disturbed flow. [PDF]

open access: yesPLoS ONE, 2014
Although a helical configuration of a prosthetic vascular graft appears to be clinically beneficial in suppressing thrombosis and intimal hyperplasia, an optimization of a helical design has yet to be achieved because of the lack of a detailed ...
Hojin Ha   +4 more
doaj   +1 more source

Effect of swirl on fluctuation of pressure drop in a gas–liquid slug flow

open access: yesMeasurement: Sensors, 2020
Slug flow as one of the typical two-phase flow patterns occurs widely in industry. The fluctuating phenomenon in slug flow is harmful to the pipeline system and should be suppressed.
Wen Liu, Xiaofei Lv, Zhongchuang Zhao
doaj   +1 more source

Measurement and prediction on the liquid film thickness of swirling annular flow

open access: yesMeasurement: Sensors, 2020
In this study, the liquid film thickness of swirling annular flow has been measured by parallel conductivity probes. The differences of the liquid film between vertically downward swirling annular flow and straight flow have been investigated.
Jinghan Wang, Ying Xu, Tao Zhang
doaj   +1 more source

Effects of Swirling Strength of the Premixed Gas Flow on Pollutant Emission in a Heavy-Duty Gas Turbine [PDF]

open access: yesE3S Web of Conferences, 2019
The combustion process and pollutant emission of an annular combustion chamber for a heavy-duty gas turbine were investigated by numerical method. The realizable k-ε model and finite rate/eddy dissipation model were adopted for calculations of turbulence
Gao Huanhuan   +4 more
doaj   +1 more source

Obtaining Expressions for Time-Dependent Functions That Describe the Unsteady Properties of Swirling Jets of Viscous Fluid

open access: yesMathematics, 2021
Previously, it has been shown that the dynamic geometric configuration of the flow channel of the left heart and aorta corresponds to the direction of the streamlines of swirling flow, which can be described using the exact solution of the Navier–Stokes ...
Eugene Talygin, Alexander Gorodkov
doaj   +1 more source

Detached eddy simulation on the structure of swirling jet flow field

open access: yesPetroleum Exploration and Development, 2022
The improved delayed detached eddy simulation method with shear stress transport model was used to analyze the evolution of vortex structure, velocity and pressure fields of swirling jet.
Jianxiang CHEN   +6 more
doaj   +1 more source

The Impact of Swirls on Slurry Flows in Horizontal Pipelines

open access: yesJournal of Marine Science and Engineering, 2021
In deep ocean transportation pipeline, the swirling internal flow has a significant impact on the marine minerals transportation efficiency and safety.
Hongbo Shi, Jianping Yuan, Yalin Li
doaj   +1 more source

The influence of the last stage blades swirl to the efficiency of «stage-diffuser» unit of stationary GTU

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2021
THE PURPOSE. Determination of the optimal law of swirling of the blades of the last stage of a stationary GTU. Due to the specificity of its operating conditions - in a system with a diffuser - the traditional laws of swirling lead to a non-optimal flow ...
L O. Vokin   +2 more
doaj   +1 more source

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