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John Tsamopoulos

Process & Environmental Engineering
+30 2610 997203
+30 2610 996168
Google Scholar Citations Profile:
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Curriculum Details

  • Diploma, Chemical Engineering, National Technical University of Athens, 1979.
  • M.S. Chemical Engineering, Mass. Inst. of Technology, 1981.
  • Ph.D.,Chemical Engineering, Mass. Inst. of Technology, 1985.

1. Interfacial phenomena

  • Nonlinear analysis of fluid flow with free and moving boundaries
  • Stability and Dynamic analysis of liquid films over solid and liquid substrates

Indicative applications:

  1. Determination of conditions leading to different flow patterns (trickling, pulsing, spray, bubble) in packed beds.
  2. Motion, interaction, coagulation and removal of drops and bubbles from their suspensions in Newtonian and nonNewtonian liquids
  3. Film flow of micro-structured liquids over solid substrates with variable topography.
  4. Cavitation and fibrillation during the extensional flow and the probe test of adhesive (polymeric) materials

2. Fluid Mechanics and Transport Phenomena applied in the production of new materials

  • Operation limits and dynamics of processes used in the fabrication of polymeric, ceramic and electronic materials.

Indicative applications:

  1. Study of the Film-Blowing process for the production of thin polymeric films.
  2. Study of polymer extrusion to determine the conditions leading to unacceptable deformation of their surface and variation of their thickness.
  3. Study of the Blow-Molding process for the production of plastic containers
  4. Study of the Spin-Coating Process for the production of electronic storage devices
  5. Fabrication of new materials by Chemical Vapor Infiltration & Chemical Vapor Deposition.

3. Applied mathematics and computational Analysis

  • Computer-aided process and stability analysis based on bifurcation theory.
  • Development of modern computational methods combining Finite Elements, Boundary Elements, Spectral Elements, Finite Differences etc. and their optimization depending on the application
  • Singular perturbation methods using symbolic manipulators.

Tsamopoulos, J., Dimakopoulos, Y Chatzidai N., Karapetsas, G. and Pavlidis M., “Steady bubble rise and deformation in Newtonian and viscoplastic fluids and conditions for bubble entrapmentJ. Fluid Mech., 601, 123–164 (2008), doi: 10.1017/S0022112008000517

Chatzidai, N. Giannousakis, A. Dimakopoulos, Y. and Tsamopoulos, J. “On the elliptic mesh generation in domains containing multiple inclusions and undergoing large deformations”, J. Comp. Phys. 228 1980–2011 (2009), doi: 10.1016/

Papaioannou, J., Karapetsas, G., Dimakopoulos Y. and Tsamopoulos, J. "Injection of a viscoplastic material inside a tube or between parallel disks: conditions for wall detachment of the advancing front J. Rheol. 53(5), 1155-1191 (2009), doi: 10.1122/1.3191779.

Pavlidis, M., Dimakopoulos, Y. and Tsamopoulos, J. ‘Steady viscoelastic film flow over 2D topography: I. The effect of viscoelastic properties under creeping flow”, J. Non Newt. Fluid Mech., 165, 576-591 (2010), doi: 10.1016/j.jnnfm.2010.02.017.

Chatzidai, A. Dimakopoulos, Y. and Tsamopoulos, J., "Viscous effects on two interacting and deformable bubbles under a step change in pressure" J. Fluid Mech., 673, 513-547 (2011), doi:

Dimakopoulos, Y., Pavlidis, M. and Tsamopoulos, J.Steady bubble rise in Herschel-Bulkley fluids and comparison of predictions via the Augmented Lagrangian Method with those via the Papanastasiou modelJ. Non Newt. Fluid Mech., 200, 34-51 (2013), doi:

Karapetsas, G. and Tsamopoulos, J. "On the stick-slip flow from slit and cylindrical dies of a Phan-Tien and Tanner fluid model: II. Linear stability analysis to two- and three-dimensional disturbances", Phys. Fluids25, 093105 (2013), doi:

Publication List (Full):
Curriculum Vitae:
-- Fall 1979: A.D. Little Fellowship, MIT,
-- Spring 1980: DuPont Fellowship, MIT,
-- Fall 1980: Union Carbide Fellowship, MIT,
-- Spring 1981: Departmental Fellowship, MIT,
-- Fall 1981 & Spring 1982: Halcon International Fellowship, MIT.
-- 1980: Chryssoverghis Prize, National Technical University of Athens, NTUA. Awarded to the student ranking first overall in each graduating class in the School of Chemical Engineering.
-- 1978 & 1979: Prizes of the Technical Chamber of Greece.
-- 1976 - 1979: Greek Scholarship Foundation Awards.
-- 1980: 17th November 1973" prize, Technical Chamber of Greece.
-- 1992, 1996, 2006: Who’s Who in Science and Engin., New Providence NJ, (USA),
-- 2001 – 2005, 2008-2009: Who’s Who in the World, New Providence, NJ, (USA).
-- 2007: The presentation entitled: “Steady bubble rise and deformation in Bingham fluids and conditions for their entrapment with Y. Dimakopoulos, N. Chatzidai, G. Karapetsas, M. Pavlidis, received the Best paper award in the Conference on Viscoplasticity: from Theory to Application, Ticino, SWITZERLAND, October 2007
-- Member of the National Advisory Research Council (ΕGSE), of the Ministry of Development of Greece, (1998-2001).
-- Co-edited with D. Vlassopoulos the special issue of the J. Non-Newt. Fluid Mech. 102(2), (2002), dedicated to Prof. A. -- Acrivos on the occasion of his retirement from the Levich Institute and CCNY.
-- Member of the editorial Board of the Journal Non-Newtonian Fluid Mechanics (Jan. 2002 - present).
-- Member of the editorial Board with Ian Frigaard, John Billingham and Marcio Carvalho the special issue entitled “ Complex Flows and Fluids” of the “Journal of Engineering Mathematics”, 71(1), (2011).
-- Member of the editorial Board of the International Scholarly Research Network (ISRN) Chemical Engineering (2011-present)