Ebrahim Ghahramani

Doctoral Student at Marine Technology

Ebrahim Ghahramani studies cavitation modelling in his PhD. The aim is to develop a hybrid Eulerian mixture – Lagrangian bubble solver to improve the resolution of various scales of cavity structures. In this model, the larger cavities are considered in the Eulerian framework and the sub-grid structures are tracked as Lagrangian bubbles. The hybrid solver will be an efficient tool for real case problems and addresses the issues with Eulerian models in cavitation inception and bubble collapse. The project is a part of H2020 CaFE ITN project and also in collaboration with Chalmers UTC. Ebrahim Ghahramani has academic background in Fluid Mechanics and his research interests include CFD, Multiphase flows, Biomedical engineering and Turbulence Modeling.

Source: chalmers.se

Showing 10 publications

2020

Experimental and numerical study of cavitating flow around a surface mounted semi-circular cylinder

Ebrahim Ghahramani, Saad Jahangir, Magdalena Neuhauser et al
International Journal of Multiphase Flow. Vol. 124
Journal article
2019

A comparative study between numerical methods in simulation of cavitating bubbles

Ebrahim Ghahramani, Mohammad Hossein Arabnejad Khanouki, Rickard Bensow
International Journal of Multiphase Flow. Vol. 111, p. 339-359
Journal article
2019

Experimental study of cavitation erosion around a surface-mounted semi-circular cylinder

Saad Jahangir, Ebrahim Ghahramani, Magdalena Neuhauser et al
Paper in proceedings
2018

Realizability improvements to a hybrid mixture-bubble model for simulation of cavitating flows

Ebrahim Ghahramani, Mohammad Hossein Arabnejad Khanouki, Rickard Bensow
Computers and Fluids. Vol. 174, p. 135-143
Journal article
2018

Analysis of the Finite Mass Transfer Models in the Numerical Simulation of Bubbly Flows

Ebrahim Ghahramani, Rickard Bensow
CAV2018 PROCEEDINGS
Paper in proceedings
2017

A HYBRID MODEL FOR SIMULATION OF CAVITATING FLOWS

Ebrahim Ghahramani, Mohammad Hossein Arabnejad Khanouki, Rickard Bensow
12th OpenFOAM® Workshop
Paper in proceedings
2017

Simulation of small-scale cavity structures through coupling of the mixture model with the discrete bubble model

Ebrahim Ghahramani, Rickard Bensow
NUTTS' 17 20 th Numerical Towing Tank Symposium, p. 68-73
Paper in proceedings
2016

A multi-scale Eulerian-Lagrangian model for simulation of cavitating flows

Ebrahim Ghahramani, Rickard Bensow
NUTTS' 16 19th Numerical Towing Tank Symposium, p. 37-42
Paper in proceedings

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Showing 1 research projects

2015–2019

Development and experimental validation of computational models for cavitating flows, surface erosion damage and material loss (CaFE)

Rickard Bensow Marine Technology
Mohammad Hossein Arabnejad Khanouki Marine Technology
Ebrahim Ghahramani Marine Technology
European Commission (EC)

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