108 citations · 346 across the 8 of their papers we have counts for
8 papers
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…
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…