Results 11 to 20 of about 4,650,677 (354)

Experimental tests of the air flowing out of a swirl diffuser [PDF]

open access: yesEPJ Web of Conferences, 2022
The geometry of swirl diffusers affects the shape of the air stream injected into the rooms. In this work, the air flow from the swirl diffuser was tested using the Particle Image Velocimetry (PIV) method.
Borowski Marek   +3 more
doaj   +1 more source

Numerical and experimental studies on the influences of flow field on the measurement accuracy of ultrasonic water meters

open access: yesMeasurement: Sensors, 2021
CFD modelling and experiments are carried out to study the influences of flow field on the measurement accuracy of ultrasonic water meters. The swirl generator and flow disturber are selected to change the flow field distributions inside the pipe.
Jieqiang Ji   +6 more
doaj   +1 more source

Effects of swirl enhancement on in-cylinder flow and mixture characteristics in a high-compression-ratio, spray-guided, gasoline direct injection engine

open access: yesCase Studies in Thermal Engineering, 2022
In this study, the flow enhancement effects of applying a swirl control valve were investigated with particle image velocimetry and simulation using CONVERGE v2.4 program in a high compression ratio, spray-guided, gasoline direct injection engine.
Jisoo Shin   +3 more
doaj   +1 more source

Flow and Performance of the Disk Cavity of a Marine Gas Turbine at Varying Nozzle Pressure and Low Rotation Speeds: A Numerical Investigation

open access: yesMachines, 2023
In marine gas turbines, variations in rotational speed occur all the time. To ensure adequate cooling effects on the turbine blades, the valves need to be adjusted to change the pressure upstream of the pre-swirl nozzle.
Bo Hu   +4 more
doaj   +1 more source

Characterizing Swirl Strength and Recirculation Zone Formation in Tangentially Injected Isothermal Flows [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
This paper presents a computational study characterizing the swirl intensity distribution and Internal Recirculation Zone (IRZ) formed in a cylindrical domain with tangential injections and isothermal flow.
R. Sharma, M. Kumar
doaj   +1 more source

Numerical Investigation of Transient Flow Characteristics in a Centrifugal Compressor Stage with Variable Inlet Guide Vanes at Low Mass Flow Rates

open access: yesEnergies, 2021
This study numerically investigates the beneficial effects of positive pre-swirl on the aerodynamic performance and internal flow field in a centrifugal compressor stage with variable inlet guide vanes (VIGVs) at low mass flow rates.
Shuai Li   +4 more
doaj   +1 more source

Swirl-Bypass Nozzle for CO2 Two-Phase Ejectors: Numerical Design Exploration

open access: yesEnergies, 2022
In this work, a novel ejector design concept of a swirl-bypass nozzle is proposed to improve off-design performance of CO2 two-phase ejectors. The swirl-bypass nozzle allows part of the flow to bypass into the ejector mixing chamber to generate swirl ...
Knut Emil Ringstad   +3 more
doaj   +1 more source

On vortex/wave interactions. Part 2. Originating from axisymmetric flow with swirl [PDF]

open access: yes, 2006
Following the study in Part 1 of cross-flow and other non-symmetric effects on vortex/wave interactions in boundary layers, the present Part 2 applies the ideas of Part 1 and related works to an incident axisymmetric flow supplemented by a small swirl or
Allen, T, Brown, SN, Smith, FT
core   +1 more source

Simulation of the Internal Flow of the High-Pressure Swirl Injector

open access: yesJournal of Thermal Science and Technology, 2009
The simulation of the internal flow of a kind of high-pressure swirl injector was carried out with multiphase and cavitation models basing on the movement mesh. The spray was also simulated with the result of the internal flow simulation.
Lei FU, Tsuneaki ISHIMA, Wu-qiang LONG
doaj   +1 more source

Preliminary numerical study of single bubble dynamics in swirl flow using volume of fluid method

open access: yesNuclear Engineering and Technology, 2021
Spacer grid with mixing vane had been widely used in nuclear reactor core. One of the main feather of spacer grid with mixing vane was that strong swirl flow was formed after the spacer grid.
Zhongchun Li   +6 more
doaj   +1 more source

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