Department of Mechanical Engineering

Pavlos Vlachos


Pavlos Vlachos



Assistant Professor

114U Randolph Hall
540-231-3366
540-231-9100- FAX

pvlachos@vt.edu



Education Research Experience


Education

Ph.D. Engineering Mechanics Virginia Tech 2000
M.S. Engineering Mechanics Virginia Tech 1998
B.S. Mechanical Engineering, National Technical University of Athens 1995

 

Research

Pavlos Vlachos research has been sponsored by NSF, AFOSR, AFRL, ONR, US Navy, NASA, NIST, DOE, Abbott Vascular, Pratt and Whitney, Dorr-Oliver Eimco, American Heart Association, Carilion Biomedical Institute, Aeroprobe, Techsburg and Discover Technologies.

Pavlos Vlachos research interests are on:

Experimental fluid mechanics:

  • Classic and Time-Resolved Particle Image Velocimetry (TR-DPIV)
  • Optical flow diagnostics for micro and multi-phase flows.
  • Measurement systems for high temperature enviroments
  • Development of novel sensors, MEMS sensors/devices for pressure, shear, heat flux and chemical sensing
  • Novel measurement techniques for velocity and particle/droplet size measurements
  • Digital signal and image processing
  • Application to artificial intelligence on experimental methods and data analysis

Biofluids:

  • Cardiovascular fluid mechanics, arterial and cardiac flows
  • Biomedical devices and vascular implants
  • Biosensors
  • Drug targeting

Aero-thermo-dynamics

  • Active flow control for drag reduction, lift enhancement, separation,
  • Fluid-structure interaction/vibration cancelation
  • Convective heat transfer. Heat transfer augmentation by high free stream turbulence
  • Mixing

Multi-phase flows:

  • Interaction of particles droplets or bubbles with transitional or turbulent flows
  • Separation, flotation processes
  • Gas-particle flows with wall collisions
  • Water transport in Fuel-cell
  • Gas-plume dynamics
  • Supercavitation

For more information visit the Advanced Experimental Thermofluids Engineering Research (AEThER) Laboratory


BACK TO TOP

 

Teaching Activities

  • ME 6984: Advanced Methods in Experimental Fluid Mechanics
  • ME 5984: Experimental Fluid Mechanics
  • SBES/ME/ESM 4984/5984 : Cardiovascular Fluid Mechanics
  • ME 4015/4016: Senior Design
  • ME 3404: FLUID MECHANICS: Comprehensive first course in basic and applied fluid mechanics. Fluid properties, statics, kinematics, and dynamics. Euler's and Bernoulli's equations. Hydrodynamics. Dimensional analysis and similitude. Real fluids, laminar and turbulent flows. Boundary layer model and approximate analysis. Compressible flow and propulsion devices. Flow measurement. Introduction to turbomachinery with applications. Pre: ESM 2304, MATH 2214; Co: 3124. (3H,3C). I,II.
  • ME 3124: THERMODYNAMICS: Classical thermodynamics and its applications. Thermodynamics properties of pure substances: property tables, property software, equations of state. First law of thermodynamics. Second law of thermodynamics. Gas mixtures. Combustion: atom and energy balances. Power and refrigeration cycles. Pre: ME 2124. (3H, 3C). I, II


BACK TO TOP

 

Experience

Assistant Professor Mechanical Engineering Dept. Virginia Tech 08/03-present
Core Faculty School of Biomedical Engineering and Sciences, Virginia Tech 08/03-present
Affiliate Faculty Wake Forest Institute of Regenerative Medicine 11/06-present
Affiliate Faculty Dept of Engineering Sciences and Mechanics, Virginia Tech 09/04-present
Senior Scientist Aeroprobe Corp (Blacksburg, Va.) R&D 01/97-08/03 
Research Assistant Professor Engineering. Science and Mechanics Dept. Virginia Tech 07/02-08/03
Visiting Assistant Professor Engineering. Science and Mechanics Dept. Virginia Tech 05/00-07/02

BACK TO TOP

 

Honors

  • Plenary Speaker 5th IASME/ WSEAS International Conference on Fluid Mechanics and Aerodynamics, 2007
  • College of Engineering Faculty Fellow Award 2007
  • ASME Division of Fluids Engineering Moody Award-Best Paper 2006
  • National Academy of Engineering 2006 Frontiers of Engineering Selection/Attendee
  • NSF CAREER 06; Arterial Flow Dynamics: Effects of Pulsatility Curvature and Compliance
  • MIT 2005 11th Annual T.F. Ogilvie Award, Young Investigator Lectureship in Fluid Mechanics
  • Dean’s Award of Excellence for Outstanding Assistant Professor Virginia Tech 2004-2005
  • Dean’s List for Teaching Excellence, 2004, 2005, 2006
  • Hellenic Academia of Abroad (HELLADIA Organization) Member May 2000.
  • 30th AIAA Fluid Dynamics Conference Invited paper, Norfolk ’99  w/ Telionis DP and Zeiger MD


BACK TO TOP

 

Publications

  • Vlachos P. P. and Telionis D. P., “The Effect Of Free Surface On The Vortex Shedding From Inclined Circular Cylinders”, Accepted Journal of Fluids Engineering T-ASME
  • Harpold A.A., Mostaghimi S., Vlachos P. K. Brannan, T. Dillaha, “Stream discharge measurement using a large-scale particle image velocimetry (LSPIV) prototype”. Transactions of the ASABE v49 (6), pages 1791-1805
  • Rullan Jose, Vlachos Pavlos P. Telionis Demetri P. and Zeiger Matthew D., “Post-Stall Flow Control of Sharp-Edged Wings via Unsteady Blowing” AIAA Journal of Aircraft vol 43 no 6 pp 1738-1746
  • Brady M. Vlachos P. P. Telionis, D. P. and Yoon R.H “Velocities of Particles and Bubbles in Grid Turbulence Measured by Particle Image Velocimetry”  International Journal of Minerals Processing Volume 80, Issues 2-4 , September 2006, Pages 133-143
  • Pierrakos O. and Vlachos P. P., ”On the Effect of Vortex Formation in Left Ventricular Flows"  Journal of Biomechanical Engineering, T-ASME August 2006, Volume 128, Issue 4, pp. 527-539
  • Etebari, A and Vlachos, P (2005). “Improvements on the accuracy of derivative estimation from DPIV velocity measurements.” Experiments in Fluids, Vol. 39, N. 4.
  • Yong Woo Lee, Pavlos P. Vlachos, Sung Yong Eum, Michal Toborek, “Interleukin-4 induces E-selectin expression in human vascular endothelial cells” The FASEB Journal Volume 19, Number 4, pp A696
  • Miranda S., Vlachos P. P. Telionis D. P. and Zeiger M. D., “Flow Control of a Sharp-Edged Airfoil”, AIAA Journal 2005 0001-1452 vol.43 no.4 (716-726
  • Klute S. M., Vlachos P. P., and Telionis D. P., “A High-Speed DPIV Study of the Unsteady Characteristics of Vortex Breakdown”, AIAA Journal 2005 0001-1452 vol.43 no.3 (642-650)
  • Pierrakos O., Vlachos P. P., and Telionis D. P.”Vorticity and Turbulence Characteristics Inside a Transparent Flexible Left Ventricle via Digital Particle Image Velocimetry” Journal of Biomechanical Engineering. T-ASME Vol 126, 6, pp. 714-726, (2004)
  • Zeiger, M.D., Telionis, D.P., Vlachos, P.P., “Unsteady Separated Flows Over 3-D Slender Bodies,” Journal of Progress in Aerospace Sciences 40, 291-320, (2004).
  • Yazdani Saami K. , James E. Moore, Jr., Joel L. Berry, and Pavlos P. Vlachos, DPIV Measurements of Flow Disturbances in Stented Artery Models: Adverse affects of Compliance Mismatch, Journal of Biomechanical Engineering. T-ASME Volume 126, Issue 5, pp. 559-566, (2004).
  • Vlachos P. P. and Hajj M. R., “A Time-Resolved DPIV Study Of The Unsteady Character Of The Flow Over A Surface Mounted Prism” Journal of Wind Engineering and Industrial Aerodynamics. (vol 90 pp 543-553)


BACK TO TOP