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Dimitrakopoulos, Panagiotis (Panos)

Panos Dimitrakopoulos
Associate Professor
1227B Chemical and Nuclear Engineering Building
Email: 
Phone: 
301-405-8166
Fax: 
301-405-0523
Lab Description: 

News About This Professor

Education 

Ph.D., University of Illinois at Urbana-Champaign, 1998

Research Interests 

Computational fluid dynamics, bio/micro-fluidics, biophysics, and numerical analysis.

Current Research Projects 

For a detailed list of current research projects, please visit www.eng.umd.edu/~dimitrak/pd-current-research.html.

Teaching 

Professor Dimitrakopoulos current teaches or has taught the following courses:

  • ENES 100: Intoduction to Engineering Design
  • ENCH 250: Computer Methods in Chemical Engineering
  • ENCH 468W/648W: Transport Phenomena in Small and Biological Systems
  • ENCH620: Methods of Engineering Analysis
  • ENCH630: Transport Phenomena

Professional Memberships 

  • American Institute of Chemical Engineers
  • The Society of Rheology
  • American Physical Society
  • Technical Chamber of Greece

Selected Publications 

Biofluid Dynamics: Flow in Microfluidics

Dimitrakopoulos, P., 2012 "Analysis of the variation in the determination of the shear modulus of the erythrocyte membrane: Effects of the constitutive law and membrane modeling" Phys. Rev. E, 85, 041917.

Dodson W. R. III and Dimitrakopoulos, P., 2012 "Tank-treading of swollen erythrocytes in shear flows" Phys. Rev. E, 85, 021922.

Dimitrakopoulos, P., 2011 "Comment on "Tank-treading and tumbling frequencies of capsules and red blood cells" Phys. Rev. E, 84, 058301.

Dodson W. R. III and Dimitrakopoulos, P., 2011 "Oscillatory tank-treading motion of erythrocytes in shear flows" Phys. Rev. E, 84, 011913.

Kuriakose S. and Dimitrakopoulos, P., 2011 "Motion of an elastic capsule in a square microfluidic channel" Phys. Rev. E, 84, 011906.

Dodson W. R. III and Dimitrakopoulos, P., 2010 "Tank-treading of erythrocytes in strong shear flows via a non-stiff cytoskeleton-based continuum computational modeling" Biophys. J., 99, 2906-2916.

Dodson W. R. III and Dimitrakopoulos, P., 2009 "Dynamics of strain-hardening and strain-softening capsules in strong planar extensional flows via an interfacial spectral boundary element algorithm for elastic membranes" J. Fluid Mech., 641, 263-296.

Takemura F., Magnaudet J. and Dimitrakopoulos, P., 2009 "Migration and deformation of bubbles rising in a wall-bounded shear flow at finite Reynolds number" J. Fluid Mech., 634, 463-486.

Dodson W. R. III and Dimitrakopoulos, P., 2008 "Spindles, cusps and bifurcation for capsules in Stokes flow" Phys. Rev. Lett., 101, 208102.

Wang Yechun and Dimitrakopoulos, P., 2006 "A three-dimensional spectral boundary element algorithm for interfacial dynamics in Stokes flow" Phys. Fluids, 18, 082106(1-16).

Wang Yechun and Dimitrakopoulos, P., 2006 "Nature of the hemodynamic forces exerted on vascular endothelial cells or leukocytes adhering to the surface of blood vessels" Phys. Fluids, 18, 087107(1-14).

Wang Yechun and Dimitrakopoulos, P., 2006 "Normal force exerted on vascular endothelial cells" Phys. Rev. Lett., 96, 028106.


Dynamics of Multiphase Flows: Flow in Porous Media

Wang Yechun and Dimitrakopoulos, P., 2012 "Low-Reynolds-number droplet motion in a square microfluidic channel" Theor. Comput. Fluid Dyn., 26, 361-379.

Dimitrakopoulos, P., 2007 "Gravitational effects on the deformation of a droplet adhering to a horizontal solid surface in shear flow" Phys. Fluids, 19, 122105(1-14).

Dimitrakopoulos, P., 2007 "Deformation of a droplet adhering to a solid surface in shear flow: onset of interfacial sliding" J. Fluid Mech., 580, 451-466.

Dimitrakopoulos, P. and Higdon, J.J.L., 2003 "On the displacement of fluid bridges from solid surfaces in viscous pressure-driven flows" Phys. Fluids, 15 (10), 3255-3258.

Dimitrakopoulos, P. and Higdon, J.J.L., 2001 "On the displacement of three-dimensional fluid droplets adhering to a plane wall in viscous pressure-driven flows" J. Fluid Mech., 435, 327-350.

Dimitrakopoulos, P. and Higdon, J.J.L., 1999 "On the gravitational displacement of three-dimensional fluid droplets from inclined solid surfaces" J. Fluid Mech., 395, 181-209.

Dimitrakopoulos, P. and Higdon, J.J.L., 1998 "On the displacement of three-dimensional fluid droplets from solid surfaces in low-Reynolds-number shear flows" J. Fluid Mech., 377, 189-222.

Dimitrakopoulos, P. and Higdon, J.J.L., 1997 "Displacement of fluid droplets from solid surfaces in low-Reynolds-number shear flows" J. Fluid Mech., 336, 351-378.

Dimitrakopoulos, P., 2003 "Conformational evolution of initially straight flexible and stiff polymers over extended time periods via the scaling law methodology " J. Chem. Phys., 119 (15), 8189-8196.

Dimitrakopoulos, P., 2004 "Longitudinal relaxation of initially straight flexible and stiff polymers" Phys. Rev. Lett., 93, 217801.

Biophysics and Microrheology: Dilute Solutions of Biopolymers

Dissanayake, I. D. and Dimitrakopoulos, P., 2006 "Stress, birefringence and conformational relaxation of an initially straight stiff bead-rod polymer" Phys. Rev. E, 74, 021918(1-14).

Dimitrakopoulos, P., 2004 "Stress and configuration relaxation of an initially straight flexible polymer" J. Fluid Mech., 513, 265-286.

Dimitrakopoulos, P., Brady, J. F. and Wang, Zhen-Gang, 2001 "Short- and intermediate-time behavior of the linear stress relaxation in semiflexible polymers" Phys. Rev. E., 64 (5), 050803(R).


Numerical Analysis: Development of Efficient Computational Methodologies

Dodson W. R. III and Dimitrakopoulos, P., 2010 "Tank-treading of erythrocytes in strong shear flows via a non-stiff cytoskeleton-based continuum computational modeling" Biophys. J., 99, 2906-2916.

Wang Yechun and Dimitrakopoulos, P., 2010 "Computational studies of interfacial dynamics in microfluidics via a 3D spectral boundary integral algorithm" In Proceedings of the ASME 2009 2nd Micro/Nanoscale Heat and Mass Transfer International Conference, December 18-21, 2009, Shanghai, China, MNHMT2009, 3, 659-662.

Dodson W. R. III and Dimitrakopoulos, P., 2009 "Dynamics of strain-hardening and strain-softening capsules in strong planar extensional flows via an interfacial spectral boundary element algorithm for elastic membranes" J. Fluid Mech., 641, 263-296.

Dimitrakopoulos, P., 2007 "Interfacial dynamics in Stokes flow via a three-dimensional fully-implicit interfacial spectral boundary element algorithm" J. Comp. Phys., 225, 408-426.

Dimitrakopoulos, P., and Wang Jingtao, 2007 "A spectral boundary element algorithm for interfacial dynamics in two-dimensional Stokes flow based on Hermitian interfacial smoothing" Eng. Anal. Bound. Elem., 31, 646-656.

Wang Yechun and Dimitrakopoulos, P., 2006 "A three-dimensional spectral boundary element algorithm for interfacial dynamics in Stokes flow" Phys. Fluids, 18, 082106(1-16).

Wang Yechun, Dodson W. R. III and Dimitrakopoulos, P., 2006 "Dynamics of multiphase flows via spectral boundary elements and parallel computations" In Parallel Computational Fluid Dynamics: Theory and Applications, A. Deane, G. Brenner, A. Ecer, D. Emerson, J. McDonough, J. Periaux, N. Satofuka and D. Tromeur-Dervout (Eds.). Elsevier/North-Holland, 405-412.

Dissanayake I. D. and Dimitrakopoulos, P. 2006 "Dynamics of biological and synthetic polymers through large-scale parallel computations" In Parallel Computational Fluid Dynamics: Theory and Applications, A. Deane, G. Brenner, A. Ecer, D. Emerson, J. McDonough, J. Periaux, N. Satofuka and D. Tromeur-Dervout (Eds.). Elsevier/North-Holland, 211-218.

Dimitrakopoulos, P. 2003 "Conformational evolution of initially straight flexible and stiff polymers over extended time periods via the scaling law methodology " J. Chem. Phys., 119 (15), 8189-8196.

Dimitrakopoulos, P. and Higdon, J.J.L., 1998 "On the displacement of three-dimensional fluid droplets from solid surfaces in low-Reynolds-number shear flows" J. Fluid Mech., 377, 189-222.

Dimitrakopoulos, P. and Higdon, J.J.L., 1997 "Displacement of fluid droplets from solid surfaces in low-Reynolds-number shear flows" J. Fluid Mech., 336, 351-378.

Related News 

Abdollah Koolivand Wins J.M. Burgers Program Award
ChBE Ph.D. Candidate Abdollah Koolivand won an award for best poster at the 13th Annual Symposium of the Burgers Program for Fluid Dynamics.  December 5, 2016

Boughter, Gastfriend, Piekarz Win 2014 Undergraduate Research Awards
Students recognized for work on metabolic engineering, nanoparticle synthesis. May 8, 2015

New Device Models Will Improve Design of Biomedical Devices
Dimitrakopoulos' group publishes new methods for calculating membrane's characteristics. March 26, 2015

Boger, Kreeger and Saez Win 2013 Undergraduate Research Awards
Students recognized for work in red blood cell flow, metabolic pathways, and chitosan microparticles. April 7, 2014

Dimitrakopoulos Puts a Virtual Squeeze on Blood
NSF supports advanced simulation that may predict how red blood cells and capsules behave in tight vessels. October 15, 2013

Dimitrakopoulos, Dodson Publish Novel Modeling for Red Blood Cells in Complex Flow Systems
Paper appears in the top-rated Biophysical Journal. November 16, 2010

2009-2010 ChBE Undergraduate Awards
Students recognized at annual Clark School event. April 26, 2010

Dimitrakopoulos Wins NBIB/NIH Grant for Study on Disease States of Red Blood Cells
Research will address problems associated with paraproteinemia, malaria. May 4, 2009

Yechun Wang Appointed to North Dakota State Faculty
Former student specializes in physiological fluid dynamics and microfluidics. December 19, 2008

Dimitrakopoulos' Capsule Dynamics Research Featured in Physical Review Letters
Top physics journal publishes work on spindles, cusps and bifurcation for capsules in strong flows. November 26, 2008

Dimitrakopoulos Promoted
Becomes Associate Professor with tenure effective July 1. May 8, 2008

Dimitrakopoulos Wins 2 NSF Grants
Studies to focus on microcirculation and membrane-enclosed fluid volumes. September 5, 2007