Results 31 to 40 of about 58,998 (325)

Analysis of Energy Dissipation of Interval-Pooled Stepped Spillways

open access: yesEntropy, 2022
The water flow characteristics over an interval-pooled stepped spillway are investigated by combining the renormalization group (RNG) k-ε turbulence model with the volume of fluid (VOF) interface capture technique in the present study.
Xin Ma, Jianmin Zhang, Yaan Hu
doaj   +1 more source

Scalability of the parallel CFD simulations of flow past a fluttering airfoil in OpenFOAM

open access: yesEPJ Web of Conferences, 2015
The paper is devoted to investigation of unsteady subsonic airflow past an elastically supported airfoil during onset of the flutter instability. Based on the geometry, boundary conditions and airfoil motion data identified from wind-tunnel measurements,
Šidlof Petr, Řidký Václav
doaj   +1 more source

Space-time discontinuous Galerkin method for the numerical simulation of the compressible turbulent gas flow through the porous media [PDF]

open access: yesEPJ Web of Conferences, 2019
The article is concerned with the numerical simulation of the compressible turbulent gas flow through the porous media using space-time discontinuous Galerkin method.The mathematical model of flow is represented by the system of non-stationary Reynolds ...
Česenek Jan
doaj   +1 more source

On the Nature of Magnetic Turbulence in Rotating, Shearing Flows

open access: yes, 2015
The local properties of turbulence driven by the magnetorotational instability (MRI) in rotating, shearing flows are studied in the framework of a shearing-box model. Based on numerical simulations, we propose that the MRI-driven turbulence comprises two
Boldyrev, Stanislav   +2 more
core   +3 more sources

CFD-Modeling of the Airfoil of the Blades of a Wind Power Plant with a Vertical Axis in the Ansys Fluent System

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика
The article presents the results of research on modeling the DU-06-W-200 airfoil used in wind power plants with a vertical axis in the Ansys Fluent system, evaluating compatibility with experimental data and determining the optimal angle of attack.
G. N. Uzakov   +4 more
doaj   +1 more source

On Application of EARSM Turbulence Model for Simulation of Flow Field behind Rack Station

open access: yesEPJ Web of Conferences, 2013
This paper is interested in the mathematical modeling and approximation of the turbulent flow with strong anisotropy for the case of flow in a rack station. Turbulent models based on Boussinesq eddy viscosity assumption are traditionally employed for the
Fürst J.   +4 more
doaj   +1 more source

Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami

open access: yesAdvanced Functional Materials, EarlyView.
A reconfigurable metamaterial featuring tunable microwave‐absorbing and load‐bearing performance is proposed. Stretchable kirigami and bistable origami configurations are integrated as actuating components, and the synergistic deformation mechanisms are systematically analyzed.
Weimin Ding   +7 more
wiley   +1 more source

Effect of Inlet Condition on the Performance Curve of a 10 MW Supercritical Carbon Dioxide Centrifugal Compressor

open access: yesMachines, 2022
The influence of inlet condition upon the performance and stability for a 10 MW supercritical carbon dioxide centrifugal compressor is investigated using the computational fluid dynamics method. The inlet conditions which are considered are as follows, a
Zhiting Tong   +5 more
doaj   +1 more source

Experimental and CFD airflow studies of a cleanroom with special respect to air supply inlets [PDF]

open access: yes, 2010
Investigations were carried out into the airflow in a non-unidirectional airflow cleanroom and its affect on the local airborne particle cleanliness The main influence was the method of air supply A supply inlet with no diffuser gave a pronounced ...
Green, G.   +3 more
core   +1 more source

Miniature Robotic Swimmer with Precise 2D Motion Control via Acoustic Vortex‐Induced Propulsion

open access: yesAdvanced Science, EarlyView.
In this work, a miniature robotic swimmer achieves precise 2D motion using sound waves with customized 3D‐printed lenses. Localized acoustic vortices drive both translation and rotation of the swimmer without mechanical parts. This contactless approach offers a novel route to controlled micro‐scale movement, with promising applications in biomedical ...
Chadi Ellouzi   +6 more
wiley   +1 more source

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