Results 91 to 100 of about 132 (111)
Some of the next articles are maybe not open access.
Renewable and Sustainable Energy Reviews, 2021
Abstract Hydropower is a clean and renewable source of energy which is widely used to generate electric power and stabilize the power grid. It can respond quickly to any change in demand with the flexibility to operate over a wide range of time scales.
Michel Cervantes, Bhupendra Gandhi
exaly +2 more sources
Abstract Hydropower is a clean and renewable source of energy which is widely used to generate electric power and stabilize the power grid. It can respond quickly to any change in demand with the flexibility to operate over a wide range of time scales.
Michel Cervantes, Bhupendra Gandhi
exaly +2 more sources
Renewable Energy, 2020
Abstract Rotating Vortex Rope (RVR) has been a matter of focus for years due to the major effects on hydraulic turbine’s efficiency. The exact procedure of RVR formation is still vague. The present research focuses on the dynamics of the RVR formation during the load variation employing transient numerical simulations.
Michel Cervantes +2 more
exaly +2 more sources
Abstract Rotating Vortex Rope (RVR) has been a matter of focus for years due to the major effects on hydraulic turbine’s efficiency. The exact procedure of RVR formation is still vague. The present research focuses on the dynamics of the RVR formation during the load variation employing transient numerical simulations.
Michel Cervantes +2 more
exaly +2 more sources
Numerical Simulation of the Rotating Vortex Rope with Code_Saturne
2019 International Conference on ENERGY and ENVIRONMENT (CIEM), 2019The paper presents numerical simulations of the rotating vortex rope (RVR) inside a Francis turbine draft tube. The computational fluid dynamics (CFD) calculations were carried out using the Code_Saturne software. The geometry of the turbine was obtained from the Francis-99 workshops. The mesh files provided for the Francis-99 workshop II were modified
Robert Mitrut +3 more
openaire +1 more source
Steady state RANS approach for numerical simulation of rotating vortex rope in conical diffusers
A novel computationally efficient approach for numerical simulation of helical vortex ropes in axially symmetric diffusers is presented and investigated. It is based on the assumption that the vortex is stationary in the frame of reference, rotating with the vortex core.Alena Romanovna Kocharina +2 more
openaire +1 more source
International Journal of Fluid Machinery and Systems, 2023
Shahab Shiraghaee +3 more
openaire +1 more source
Shahab Shiraghaee +3 more
openaire +1 more source
Global linear stability analysis of flow inside an axial swirl generator with a rotating vortex rope
Journal of Hydraulic Research, 2022Zeinab Seifi +2 more
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Global linear stability analysis of flow inside an axial swirl generator with a rotating vortex rope
Journal of Hydraulic Research/De Recherches Hydrauliques, 2023Michel Cervantes +1 more
exaly
Runner cone optimization to reduce vortex rope-induced pressure fluctuations in a Francis turbine
Science China Technological Sciences, 2021Deyou Li, Hongjie Wang, Xianzhu Wei
exaly
Study of vortex rope based on flow energy dissipation and vortex identification
Renewable Energy, 2022Ruofu Xiao, Puxi Li
exaly
Research on the Vortex Rope Control Techniques in Draft Tube of Francis Turbines
Energies, 2022Peijian Zhou +2 more
exaly