Guillermo Araya, Ph.D

Guillermo Araya, Ph.D

Assistant Professor

Computational Fluid Dynamics

Office: OF-412
T: 787-832-4040 x5720


  • Ph.D.
Rensselaer Polytechnic Institute, Troy, NY, 2008
  • M.S.
University of Puerto Rico at Mayagüez, Mayagüez, PR, 2004
  • B.S.
Instituto Universitario Aeronautico, Cordoba, Argentina, 1996


  • 2015-present
Assistant Professor, Department of Mechanical Engineering, University of Puerto Rico at Mayagüez
  • 2011-2015
Research Assistant Professor, Department of Mechanical Engineering, Texas Tech University, Lubbock, Texas.
  • 2008-2011
Research Assistant, School of Engineering, Civil and Computational Engineering Centre, Swansea University, UK.

Academic and Professional Leadership

  • Senior Member of American Institute of Aeronautics and Astronautics (AIAA)
  • Member of the American Physical Society (APS)

Curriculum Vitae

Journal Publications

  • Liu C., Araya G.(*) and Leonardi S., The role of vorticity in the turbulent/thermal transport of a channel flow with local blowing, in press, Computers and Fluids, 2017.
  • Gutierrez W., Araya G., Kiliyanpilakkil V.P., Ruiz-Columbie A., Tutkun M. and Castillo L.(*) Structural impact assessment of Low Level Jets over wind turbines, J. of Renewable and Sustainable Energy, 8, 023308, 2016.
  • Dharmarathne S., Tutkun M., Araya G., Castillo L.(*), Structures of scalar transport in a turbulent channel, European Journal of Mechanics B-Fluids, Vol. 55, Part 2, pp 259-271, 2016.
  • Araya G.(*), Castillo L. and Hussain F., The log behavior of the Reynolds shear stress in accelerating turbulent boundary layers, J. of Fluid Mechanics, Volume 775, pp 189 – 200 2015.
  • V. P. Kiliyanpilakkil, S. Basu (*), A. Ruiz-Columbié, Araya G., L. Castillo, B. Hirth, and W. Burgett, Buoyancy effects on the scaling characteristics of atmospheric boundary-layer wind fields in the mesoscale range, Phys. Rev. E 92, 033005, 2015.
  • Doosttalab A., Araya G.(*), Newman J., Adrian R., Jansen K., Castillo L., Effect of small roughness elements on thermal statistics of a turbulent boundary layer at moderate Reynolds number, J. of Fluid Mechanics, Vol. 787, pp 84 – 115, 2015.
  • Cardillo J., Chen Y., Araya G.(*), Newman J., Jansen K. and Castillo L., DNS of turbulent boundary layers with surface roughness, J. of Fluid Mechanics Vol. 729, pp 603 – 637 2013.
  • Araya G.(*) and Castillo L., DNS of turbulent thermal boundary layers subjected to adverse pressure gradients, Physics of Fluids, 25, 095107 2013.
  • Araya G.(*) and Castillo L., DNS of turbulent thermal boundary layers up to Reθ = 2300, Int. Journal of Heat and Mass Transfer, Volume 55, Issues 15–16, 4003-4019, 2012.
  • Araya G.(*), Castillo L., Meneveau C. and Jansen K., A dynamic multi-scale approach for turbulent inflow boundary conditions in spatially evolving flows, J. of Fluid Mechanics Vol. 670, pp. 581–605, 2011.
  • Araya G.(*), Leonardi S. and Castillo L., Steady and time-periodic blowing/suction perturbations in a turbulent channel flow, Physica D 240 pp. 59–77, 2011.
  • Araya G.(*), Jansen K. and Castillo L., Inlet condition generation for spatially-developing turbulent boundary layers via multi-scale similarity, J. of Turbulence, 10, No. 36, pp. 1-33, 2009.
  • Araya G.(*), Leonardi S. and Castillo L., Numerical assessment of local forcing on the heat transfer in a turbulent channel flow, Physics of Fluids, 20, 085105, 2008.
  • Araya G.(*), Leonardi S. and Castillo L., Passive scalar statistics in a turbulent channel with local time-periodic blowing/suction at walls, Physica D, 237, pp. 2190–2194, 2008.

(*) indicates corresponding author

Distinctions & Awards

  • Travel award to attend the 69th Annual Meeting of the APS Division of Fluid Dynamics (November 20-22, 2016 Portland, OR) provided by XSEDE.
  • Travel award by XSEDE to attend “Inquiry-Based Science and Mathematics Enhanced by Computational Thinking” workshop at Oklahoma State University, May 16 – 18, 2016.
  • Selected for inclusion in the 11th Edition of Marquis Who’s Who in Science and Engineering (2011 – 2012)
  • Annual Summer Institute: Reducing Your Time To Solution, San Diego Supercomputer Center (July 2007, La Jolla, CA
  • Selected as young participant in the “Euler Equations: 250 Years On” conference with travel subsidy from NSF (June 2007, Aussois, France)
  • Travel subsidy award from European Commission (Marie Curie program) for participating in the 11th European Turbulence Conference (June 2007, Porto, Portugal)
  • Travel subsidy awards (2005 and 2006): Division of Fluid Dynamics of the American Physical Society.