Mehdi Raessi

 Mehdi Raessi, Ph.D.

Assistant ProfessorMehdi Raessi

Ph.D. in Mechanical Engineering, University of Toronto, 2008

M.A.Sc in Mechanical Engineering, University of Toronto, 2003

B.Sc. in Mechanical Engineering, University of Tehran, 1998


Contact Information:


web page:

Phone: 508-999-8496

Fax: 508-999-8881

Office: Violette Building, Room 219



Mehdi Raessi joined the Mechanical Engineering Department in 2010 following a postdoctoral study at NASA-Stanford University's Center for Turbulence Research (CTR). He obtained his PhD in Mechanical Engineering from the University of Toronto in 2008. During his graduate studies, he worked in the Centre for Advanced Coating Technologies (CACT).

Dr. Raessi's research is primarily focused on numerical simulations of interfacial flows and two-phase flows with phase change. Using numerical simulations, he has been studying the fluid flow and heat transfer in various applications including materials processing (spray coating), energy systems (fuel atomization), and environmentally friendly refrigeration systems. In addition to academic research and teaching, Dr. Raessi has industrial experience as a research and development (R&D) specialist and applied engineer.


  • Postdoctoral Fellowship, NASA-Stanford University’s Center for Turbulence Research
  • Industrial Research and Development Fellowship, Government of Canada
  • CFD Society of Canada Graduate Scholarship
  • Early Career Teaching Award, University of Toronto


 Areas of Interest:

  • Interfacial flows
  • Two-phase flows with phase change
  • Microscale transport phenomena
  • Energy systems (renewable/conventional)
  • Materials processing
  • Biofluid mechanics
  • Multiscale multiphysics simulations
  • Computational fluid dynamics and heat transfer
  • Numerical methods for modeling multiphase flows
  • Scientific computing

 Selected Publications:

 Journal Publications:

1) M. Raessi, J. Mostaghimi, and M. Bussmann, A volume-of-fluid interfacial flow solver with advected normals, Computers and Fluids, Vol. 39, pp. 1401-1410 (2010).

2) K. Shinoda, M. Raessi, J. Mostaghimi, T. Yoshida, and H. Murakami, Effect of substrate concave pattern on splat formation of Yttria-stabilized Zirconia in atmospheric plasma spraying, Journal of Thermal Spray Technology, Vol. 18, pp. 609-618 (2009).

3) M. Raessi, M. Bussmann, and J. Mostaghimi, A semi-implicit finite volume implementation of the CSF method for treating surface tension in interfacial flows, International Journal for Numerical Methods in Fluids, Vol. 59, pp. 1093-1110 (2009).

4) I.V. Roisman, L. Opfer, C. Tropea, M. Raessi, J. Mostaghimi, and S. Chandra, Drop impact onto a dry surface: role of the dynamic contact angle, Colloids and Surfaces A, Vol. 322, pp. 183-191 (2008).

5) M. Raessi, J. Mostaghimi, and M. Bussmann, Advecting normal vectors: a new method for calculating interface normals and curvatures when modeling two-phase flows, Journal of Computational Physics, Vol. 226, pp. 774-797 (2007).

6) H.R. Salimijazi, M. Raessi, J. Mostaghimi, and T.W. Coyle, Study of solidification behavior and splat morphology of vacuum plasma sprayed Ti alloy by computational modeling and experimental observations, Surface and Coatings Technology, Vol. 201, pp. 7924-7931 (2007).

7) M. Raessi, J. Mostaghimi, and M. Bussmann, Effect of surface roughness on splat shapes in the plasma spray coating process, Thin Solid Films, Vol. 506-507, pp. 133-135 (2006).

8) M. Raessi and J. Mostaghimi, Three-dimensional modeling of density variation due to phase change in complex free surface flows, Numerical Heat Transfer, Part B: Fundamentals, Vol. 47, pp. 507-531 (2005).

9) N.Z. Mehdizadeh, M. Raessi, S. Chandra, and J. Mostaghimi, Effect of substrate temperature on splashing of molten tin droplets, ASME Journal of Heat Transfer, Vol. 126, pp. 445-452 (2004).


Selected publications in refereed conference proceedings and presentations:

1) M. Raessi and H. Pitsch, A level-set based methodology for modeling interfacial flows characterized by large density ratios, Proceedings of the 22nd Annual ILASS-Americas Conference, Cincinnati, OH, May 16-19, 2010.

2) M. Raessi and H. Pitsch, A level set based method for modeling large density ratio, interfacial flows, 62nd Annual Meeting of the American Physical Society's Division of Fluid Dynamics (APS/DFD), Minneapolis, MN, November 22-24, 2009.

3) M. Raessi, M. Bussmann, and J. Mostaghimi, An implicit implementation of surface tension in finite volume models for two-phase flows, Proceedings of the 20th Annual ILASS-Americas Conference, Chicago, IL, May 15-18, 2007.

4) M. Raessi, J. Mostaghimi, and M. Bussmann, A new method in calculating interface normal vectors and curvatures in modeling free-surface flows, Proceedings of the 19th Annual ILASS-Americas Conference, Toronto, ON, May 23-26, 2006.

5) M. Raessi, J. Mostaghimi, and M. Bussmann, Impact and solidification of droplets onto rough substrates, in: E. Lugscheider (Ed.), International Thermal Spray Conference, Basel, Switzerland May 2-4, 2005.

6) M. Raessi and J. Mostaghimi, Three-dimensional modeling of solidification shrinkage, Proceedings of the 11th Annual Conference of the CFD Society of Canada, Vancouver, BC, May 28-30, 2003, pp.74-79.