Transport Phenomena - Delft University of Technology

Amin Ebrahimi

Amin Ebrahimi

A New Simulation-based Approach to Welding Process Optimisation

Contact details

Research interests

  • Heat and Mass Transfer
  • Computational and Experimental Fluid Dynamics
  • Transport phenomena in Metallurgy and Materials Processing
  • Micro- and Nano-fluidics
  • Multi-phase Flows

Full publication record

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Latest publications

  • Laminar convective heat transfer of shear-thinning liquids in rectangular channels with longitudinal vortex generators, Amin Ebrahimi, Benyamin Naranjani, Shayan Milani, and Farzad D. Javan. Chemical Engineering Science 2017, 173 263–274.
    [Full Details]     [BibTeX]     Publisher: [DOI] 
  • DSMC investigation of rarefied gas flow through diverging micro- and nanochannels, Amin Ebrahimi and Ehsan Roohi. Microfluidics and Nanofluidics 2017, 21  (2), 18.
    [Full Details]     [BibTeX]     Publisher: [DOI] 
  • An Investigation on Thermo-hydraulic Performance of a Flat-plate Channel with Pyramidal Protrusions, Amin Ebrahimi and Benyamin Naranjani. Applied Thermal Engineering 2016, 106 316–324.
    [Full Details]     [BibTeX]     Publisher: [DOI] 
  • Heat Transfer and Entropy Generation in a Microchannel with Longitudinal Vortex Generators using Nanofluids, Amin Ebrahimi, Farhad Rikhtegar, Amin Sabaghan, and Ehsan Roohi. Energy 2016, 101 190–201.
    [Full Details]     [BibTeX]     Publisher: [DOI] 
  • Numerical Study of Flow Patterns and Heat Transfer in Mini Twisted Oval Tubes, Amin Ebrahimi, and Ehsan Roohi . International Journal of Modern Physics C 2015, 26  (12), 1550140.
    [Full Details]     [BibTeX]     Publisher: [DOI] 

Research description

My PhD project is devoted to the stability analysis of fusion welding processes. The challenge addressed in this research is to develop a simulation-based approach to get a better insight into weld pool dynamic behaviour for welding stability optimisation. The stability of an oscillating melt pool will be evaluated for full penetration conditions, subject to variations in orientation and geometric boundary conditions. Therefore, the primary aim of this research is to construct a novel, physically-based numerical approach for assessing the stability of a melt pool suspended between solid side walls and subject to excitation and variations in orientation and geometric boundary conditions. The proposed approach is envisaged to be applicable to any fusion welding processes, since the process can be defined by a set of boundary conditions and be controlled by introducing perturbation terms to the applied boundary conditions.


Student Projects

If you are interested in these topics or you have an idea related to these topics, please contact me at A.Ebrahimi [at]


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