196 citations · 762 across the 15 of their papers we have counts for
15 papers
Improving Computational Efficiency in DSMC Simulations of Vacuum Gas Dynamics with a Fixed Number of Particles per Cell
Moslem Sabouri, Ramin Zakeri, Amin Ebrahimi
The present study addresses the challenge of enhancing computational efficiency without compromising accuracy in numerical simulations of vacuum gas dynamics using the direct simul…
Computational Study of Rarefied Gas Flow and Heat Transfer in Lid-driven Cylindrical Cavities
Mengbo Zhu, Ehsan Roohi, Amin Ebrahimi
The gas flow characteristics in lid-driven cavities are influenced by several factors, such as cavity geometry, gas properties, and boundary conditions. In this study, the physics…
The influence of laser characteristics on internal flow behaviour in laser melting of metallic substrates
Amin Ebrahimi, Mohammad Sattari, Scholte J. L. Bremer +5
The absorptivity of a material is a major uncertainty in numerical simulations of laser welding and additive manufacturing, and its value is often calibrated through trial-and-erro…
The Effect of Groove Shape on Molten Metal Flow Behaviour in Gas Metal Arc Welding
Amin Ebrahimi, Aravind Babu, Chris R. Kleijn +2
One of the challenges for development, qualification and optimisation of arc welding processes lies in characterising the complex melt-pool behaviour which exhibits highly non-line…
Pressure-driven Nitrogen Flow in Divergent Microchannels with Isothermal Walls
Amin Ebrahimi, Vahid Shahabi, Ehsan Roohi
Gas flow and heat transfer in confined geometries at micro and nano scales differ considerably from those at macro-scales, mainly due to nonequilibrium effects such as velocity sli…
The Effects of Process Parameters on Melt-pool Oscillatory Behaviour in Gas Tungsten Arc Welding
Amin Ebrahimi, Chris R. Kleijn, Marcel J. M. Hermans +1
Internal flow behaviour and melt-pool surface oscillations during arc welding are complex and not yet fully understood. In the present work, high-fidelity numerical simulations are…