108 citations · 278 across the 6 of their papers we have counts for
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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…
Numerical Study of Molten Metal Melt Pool Behaviour during Conduction-mode Laser Spot Melting
Amin Ebrahimi, Chris R. Kleijn, Ian M. Richardson
Molten metal melt pools are characterised by highly non-linear responses, which are very sensitive to imposed boundary conditions. Temporal and spatial variations in the energy flu…
The influence of surface deformation on thermocapillary flow instabilities in low Prandtl melting pools with surfactants
Amin Ebrahimi, Chris R. Kleijn, Ian M. Richardson
Heat and fluid flow in low Prandtl number melting pools during laser processing of materials are sensitive to the prescribed boundary conditions, and the responses are highly nonli…
Sensitivity of Numerical Predictions to the Permeability Coefficient in Simulations of Melting and Solidification Using the Enthalpy-Porosity Method
Amin Ebrahimi, Chris R. Kleijn, Ian M. Richardson
The high degree of uncertainty and conflicting literature data on the value of the permeability coefficient (also known as the mushy zone constant), which aims to dampen fluid velo…
Numerical study of liquid flow and heat transfer in rectangular microchannel with longitudinal vortex generators
Amin Ebrahimi, Ehsan Roohi, Saeid Kheradmand
The liquid flow and conjugated heat transfer performance of single-phase laminar flow in rectangular microchannels equipped with longitudinal vortex generators (LVGs) are numerical…