Results 51 to 60 of about 124,199 (205)
Numerical analysis of a new cross-flow type hydraulic turbine for high head and low flow rate
Engineering Applications of Computational Fluid Mechanics, 2021 Cross-flow turbines have recently been proposed for energy recovery in aqueducts when the outlet pressure is greater than zero, owing to their constructive simplicity and good efficiency within a large range of flow rates and head drops.
Calogero Picone +3 more
doaj +1 more source
International Journal of Rotating Machinery, Volume 2026, Issue 1, 2026.This work presents and validates a direct analytical methodology for the parametric hydrodynamic design of Pelton rotors. The proposed approach combines a one‐dimensional theoretical framework for defining global geometric rotor parameters with an inductive method for generating bucket geometry, formalized from a comprehensive mapping of a high ...
Daniel O. Silva +4 more
wiley +1 more source
Control based power smoothing for aggregated vertical axis wind turbines [PDF]
, 2012 Recently there has been renewed interest in the potential of vertical axis wind turbines (VAWTs), particularly, at very large scale of 10 MW or above owing to their structural simplicity.
Leithead, William +2 more
core +3 more sources
Incremental Model Order Reduction of Smoothed‐Particle Hydrodynamic Simulations
International Journal for Numerical Methods in Fluids, Volume 97, Issue 12, Page 1571-1594, December 2025.The paper presents the development of an incremental singular value decomposition strategy for compressing time‐dependent particle simulation results, addressing gaps in the data matrices caused by temporally inactive particles. The approach reduces memory requirements by about 90%, increases the computational effort by about 10%, and preserves the ...
Eduardo Di Costanzo +3 more
wiley +1 more source
The Design of High Efficiency Crossflow Hydro Turbines: A Review and Extension
Energies, 2018 Efficiency is a critical consideration in the design of hydro turbines. The crossflow turbine is the cheapest and easiest hydro turbine to manufacture and so is commonly used in remote power systems for developing countries.
Ram Adhikari, David Wood
doaj +1 more source
Energy Technology, Volume 13, Issue 9, September 2025.This study explores the integration of solar energy with electrodialysis (ED) for sustainable freshwater generation. A photoactive electrode enhances ion transport, reducing external energy inputs and environmental impacts compared to conventional ED.
Namra Mir, Burak Yuzer, Yusuf Bicer
wiley +1 more source
Solid–Liquid Flow Analysis of Francis‐99 Turbine Runner: Effects of Sediment Concentration
Energy Science &Engineering, Volume 13, Issue 8, Page 4131-4142, August 2025.ABSTRACT This study examines the behavior of solid–liquid two‐phase flow within the runner of the Francis‐99 turbine. Numerical simulations were carried out by Ansys Fluent software using the Mixture multiphase flow model along with the Realizable k‐ε turbulence model to analyze the solid–liquid two‐phase flow in the turbine runner.
Kang Xu +6 more
wiley +1 more source
Investigation of the Effects of the Jet Impingement Angle on Torque Generation at the Suction Surface of a Pelton Turbine Bucket [PDF]
Journal of Applied Fluid MechanicsThe performance of a Pelton turbine was investigated by means of an integrated numerical and experimental study that focused on the fluid dynamics associated with the bucket suction surface during the jet–bucket interactions.
Y. X. Liu +7 more
doaj +1 more source
Energy Science &Engineering, Volume 13, Issue 2, Page 700-713, February 2025.Sediment erosion on Francis turbine components is visualized experimentally for two different operating points. The erosion rate of the Francis turbine runner is quantified during the operation. A benchmark test case is established that enables qualitative and quantitative validation of computational fluid dynamic simulations for erosion prediction ...
Ravi Poudel +3 more
wiley +1 more source
Performance Evaluation of Pelton Turbine: A Review
Hydro Nepal: Journal of Water, Energy and Environment, 2014 Earlier only experimental techniques were used to predict the performance of turbines. With advanced numerical techniques and increase in processing power of computers, Computational Fluid Dynamics (CFD) has emerged as an effective tool for the performance prediction of Pelton hydraulic turbine involving multi-fluid flow.
Vishnu Prasad, Ruchi Khare, Vishal Gupta
openaire +2 more sources