Publications related to Flow in a Pelton Turbine Bucket: Numerical and Experimental Investigations

Temporal and spatial evolution of cavitating bubbles and coherent structures in a confined submerged jet shear layer

Sebastián Camilo Leguizamón Sarmiento, Yuchuan Wang

Purpose The study aims to display the bubbles' evolution in the shear layer and their relationship with the pressure fluctuations. Furthermore, the coherent structures of the first six modes are extracted, in order to provide insight into their temporal an ...

EMERALD GROUP PUBLISHING LTD2021

Swirl number based transposition of flow-induced mechanical stresses from reduced scale to full-size Francis turbine runners

François Avellan, Arthur Tristan Favrel, Christian Landry, Keita Yamamoto, Joao Gomes Pereira Junior

At part load conditions, Francis turbines are subject to the emergence of a hydrodynamic instability in their draft tube, referred to as precessing vortex rope. It induces pressure pulsations in the water passages at the precession frequency of the vortex, ...

2020

Numerical investigation of the jet velocity profile and its influence on the Pelton turbine performance

François Avellan, Ebrahim Jahanbakhsh, Audrey Paulette Solange Maertens, Sebastián Camilo Leguizamón Sarmiento, Siamak Alimirzazadeh, Takashi Kumashiro

Numerical investigation of the unsteady flow patterns around the bucket can be helpful to improve the Pelton turbine efficiency. In fact, by studying the loss mechanisms in the flow, one can optimize the bucket design. For this purpose, an accurate investi ...

IOP PUBLISHING LTD2019

A semi-Lagrangian splitting method for the numerical simulation of sediment transport with free surface flows

Marco Picasso, Alexandre Caboussat, Gilles Steiner, Arwa Mrad

We present a numerical model for the simulation of 3D poly-dispersed sediment transport in a Newtonian flow with free surfaces. The physical model is based on a mixture model for multiphase flows. The Navier-Stokes equations are coupled with the transport ...

PERGAMON-ELSEVIER SCIENCE LTD2018

Flow Simulation of Jet Deviation by Rotating Pelton Buckets Using Finite Volume Particle Method

François Avellan, Ebrahim Jahanbakhsh, Christian Vessaz

The objective of the present paper is to perform numerical simulations of a high-speed water jet impinging on rotating Pelton buckets using the finite volume particle method (FVPM), which combines attractive features of smoothed particle hydrodynamics (SPH ...

2015

Flow simulation of a Pelton bucket using finite volume particle method

François Avellan, Ebrahim Jahanbakhsh, Christian Vessaz

The objective of the present paper is to perform an accurate numerical simulation of the high-speed water jet impinging on a Pelton bucket. To reach this goal, the Finite Volume Particle Method (FVPM) is used to discretize the governing equations. FVPM is ...

International Association For Hydraulic Research2014

Intrinsic toroidal rotation in the scrape-off layer of tokamaks

Paolo Ricci, Joaquim Loizu Cisquella, Sébastien Jolliet, Federico David Halpern, Annamaria Mosetto

The origin and nature of intrinsic toroidal plasma rotation in the scrape-off-layer (SOL) of tokamaks is investigated both analytically and through numerical simulations. It is shown that the equilibrium poloidal E x B flow, the sheath physics, and the pre ...

Amer Inst Physics2014

Numerical Simulation of Sailing Boats: Dynamics, FSI, and Shape Optimization

Alfio Quarteroni, Gianluigi Rozza, Nicola Parolini, Matteo Lombardi

The numerical simulation of free-surface flows around sailing boats is a complex topic that addresses multiple mathematical tasks: the correct study of the flow field around a rigid hull, the numerical simulation of the hull dynamics, the deformation of th ...

Springer2012

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Flow in a Pelton Turbine Bucket: Numerical and Experimental Investigations

Temporal and spatial evolution of cavitating bubbles and coherent structures in a confined submerged jet shear layer

Swirl number based transposition of flow-induced mechanical stresses from reduced scale to full-size Francis turbine runners

Numerical investigation of the jet velocity profile and its influence on the Pelton turbine performance

A semi-Lagrangian splitting method for the numerical simulation of sediment transport with free surface flows

Finite Particle Flow Simulation of Free Jet Deviation by Rotating Pelton Buckets

Is the lattice Boltzmann method suited for aeroacoustic applications ?

Flow Simulation of Jet Deviation by Rotating Pelton Buckets Using Finite Volume Particle Method

Flow simulation of a Pelton bucket using finite volume particle method

Intrinsic toroidal rotation in the scrape-off layer of tokamaks

Numerical Simulation of Sailing Boats: Dynamics, FSI, and Shape Optimization

Graph Chatbot

Chat with Graph Search

Numerical Simulation of Sailing Boats: Dynamics, FSI, and Shape Optimization

Flow simulation of a Pelton bucket using finite volume particle method

Numerical investigation of the jet velocity profile and its influence on the Pelton turbine performance

Swirl number based transposition of flow-induced mechanical stresses from reduced scale to full-size Francis turbine runners

Intrinsic toroidal rotation in the scrape-off layer of tokamaks

Is the lattice Boltzmann method suited for aeroacoustic applications ?

A semi-Lagrangian splitting method for the numerical simulation of sediment transport with free surface flows

Flow Simulation of Jet Deviation by Rotating Pelton Buckets Using Finite Volume Particle Method

Temporal and spatial evolution of cavitating bubbles and coherent structures in a confined submerged jet shear layer

Finite Particle Flow Simulation of Free Jet Deviation by Rotating Pelton Buckets