Publications de Siamak Alimirzazadeh

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 multiscale model for sediment impact erosion simulation using the finite volume particle method

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

The erosion of a surface by a sediment-laden flow is an inherently multiscale phenomenon which includes physical interactions covering many orders of magnitude in both length and time scales. Conforming to the nature of the problem, we propose a novel mult ...

2017

Impact erosion prediction using the finite volume particle method with improved constitutive models

François Avellan, Ebrahim Jahanbakhsh, Audrey Paulette Solange Maertens, Sebastián Camilo Leguizamón Sarmiento, Siamak Alimirzazadeh, Christian Vessaz

Erosion damage in hydraulic turbines is a common problem caused by the high- velocity impact of small particles entrained in the fluid. In this investigation, the Finite Volume Particle Method is used to simulate the three-dimensional impact of rigid spher ...

IOP Publishing Ltd2016

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Siamak Alimirzazadeh

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

A multiscale model for sediment impact erosion simulation using the finite volume particle method

Impact erosion prediction using the finite volume particle method with improved constitutive models

Graph Chatbot

Chattez avec Graph Search

Impact erosion prediction using the finite volume particle method with improved constitutive models

A multiscale model for sediment impact erosion simulation using the finite volume particle method

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