Results 21 to 30 of about 13,763 (262)

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

A new photobioreactor for continuous microalgal production in hatcheries based on external-loop airlift and swirling flow [PDF]

open access: yes, 2009
This study deals with the scale of a new photobioreactor for continuous microalgal production in hatcheries. The combination of the state-of-art with the constraints inherent to hatcheries has turned the design into a closed, artificially illuminated ...
Robert, René   +12 more
core   +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

Study of jet precession, recirculation and vortex breakdown in turbulent swirling jets using LES. [PDF]

open access: yes, 2009
Large eddy simulations (LES) are used to investigate turbulent isothermal swirling flows with a strong emphasis on vortex breakdown, recirculation and instability behaviour.
Ranga Dinesh, K.K.J.   +3 more
core   +1 more source

Upstream-radiated rotor–stator interaction noise in mean swirling flow [PDF]

open access: yes, 2005
A major component of the noise in modern aeroengines is rotor–stator interaction noise generated when the wake from the rotating fan impinges on a stator row downstream.
Cooper, A. J., Peake, N.
core   +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

On Flow Reversal in Turbulent Swirling Flow

open access: yesJournal of the Physical Society of Japan, 2003
Summary: A turbulent swirling flow is studied with the aid of a variational method. The mean-flow field is expressed by the mean vorticity proportional to its curl. The total axial flux and total helicity per unit length are introduced to characterize the swirling flow, and the condition for the reversal of the axial flow near the center of flow is ...
Itoh, Kimitaka   +3 more
openaire   +1 more source

Investigations in an external-loop airlift photobioreactor with annular light chambers and swirling flow [PDF]

open access: yes, 2011
Photosynthetic microorganisms could serve as valuable compounds, but also for environmental applications. Their production under controlled conditions implies to design specific reactors, named photobioreactors, in which light supply is the main ...
Fethi Aloui   +9 more
core   +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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