Swansea University

 

Dr. Guillermo Araya

  • Occupation: Research Assistant, School of Engineering, Swansea University.
  • School Education: Aeronautical and Mechanical Engineering, Nuclear Energy Applications.
  • University Education: B.Sc Aeronautical Engineering (Instituto Universitario Aeronautico, Cordoba, Argentina), M.Sc Mechanical Engineering (University of Puerto Rico at Mayagüez, US), Ph.D Aeronautical Engineering (Rensselaer Polytechnic Institute, New York, US)
  • Research Interests: computational fluid dynamics of turbulent incompressible and compressible flows, DNS, LES, turbulence modeling, heat transfer, flow control, High Performance Computing and parallel programming.
  • Project Role: Guillermo is implementing turbulence models into the FLITE System, a parallel in-house code based on a finite volume approach for the aerodynamic design of the BLOODHOUND project.
  • On being an Engineer: “I really feel passionate about engineering, the way to come up with a practical and efficient solution to a specific problem is my main motivation and driving force.

Dr. Guillermo Araya is a Research Assistant at the Civil and Computational Engineering Centre, Swansea University, UK under the supervision of Prof. Oubay Hassan. After completing his Ph.D. degree in August 2008 from Rensselaer Polytechnic Institute (Troy, New York, US) under the mentoring of Prof. Luciano Castillo, he joined the Department of Mechanical Engineering at Johns Hopkins University (Baltimore, Maryland, US) as a Postdoctoral Fellow to work with Prof. Charles Meneveau. His research interests include computational fluid dynamics of turbulent incompressible and compressible flows, DNS, LES, turbulence modeling, heat transfer and flow control.

PUBLICATIONS

Journal Articles

  • Araya G., Leonardi S. and Castillo L., Steady and time-periodic blowing/suction perturbations in a turbulent channel flow, Physica D doi:10.1016/j.physd.2010.08.006, 2010.
  • Araya G., Castillo L., Meneveau C. and Jansen K., A dynamic multi-scale approach for turbulent inflow boundary conditions in spatially evolving flows, under consideration of the Journal of Fluid Mechanics, 2009.
  • Araya G., Jansen K. and Castillo L., Inlet condition generation for spatially-developing turbulent boundary layers via multi-scale similarity, Journal 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.
  • Wang X., Castillo L. and Araya G., Temperature scalings and profiles in forced convection turbulent boundary layers, Journal of Heat Transfer, Vol.130, 2, 2008.
  • Araya G., Leonardi S., Castillo L. and Orlandi P., DNS of turbulent channel flow with local forcing at walls, International Journal of Transport Phenomena, Vol. X, pp. 1–13, 2007.
  • Jia Y. and Araya G., Numerical analysis of the design parameters on the performance of thin film temperature sensors, Measurement Science and Technology, 18, pp. 2268–2274, 2007.
  • Araya G. and Gutierrez G., Analytical solution for a transient, three-dimensional temperature distribution due to a moving laser beam, International Journal of Heat and Mass Transfer, 49 (21-22): 4124-4131, 2006.
  • Jia Y. and Araya G., Dynamic performance of thin film temperature sensor in a lubricated contact, Proc. of the Institution of Mechanical Engineers, Part J, Journal of Engineering Tribology, 220 (J6): 487-497, 2006.

Publications in Chapter Books

  • Araya G., Bohr E., Jansen K. and Castillo L., Generation of turbulent inlet conditions for velocity/thermal boundary layer simulations, In Progress in Turbulence 2, M. Oberlack, S. Guenther, T. Weller, G. Khujadze, A. Osman, M. Frewer, J. Peinke (Eds.), Springer Proceedings in Physics, vol. 109 (2006).

Articles in Refereed Conference Proceedings

  • Araya G, Evans B., Hassan O. and Morgan K., Scale adaptive simulations over a supersonic car, 6th International  Conference on CFD, St. Petersburg, Russia, 2010.
  • Araya G, Evans B., Hassan O. and Morgan K., Assessment of several turbulence models in a supersonic car, 5th ECCOMAS CFD, Lisbon, Portugal, 2010. 
  • Araya G., Cal R.B. and Castillo L., Energy budget analysis for favorable pressure gradient turbulent boundary layers using Direct Numerical Simulations, 8th ERCOFTAC Symposium on Eng. Turbulence Modelling and Measurement, Marseille, France, 2010.
  • Cardillo J., Chen Y., Araya G., Jansen K. and Castillo L., DNS of turbulent boundary layers with surface roughness, 8th ERCOFTAC Symposium on Eng. Turbulence Modelling and Measurement, Marseille, France, 2010.
  • Araya G., Castillo L., Meneveau C. and Jansen, K., A multi-scale dynamic method for spatially evolving flows, Wall-Turbulence Meeting, Lille, France. ERCOFTAC series, Springer, 2009.
  • Araya G., Jansen K. and Castillo L., DNS of forced convection turbulent boundary layers in ZPG/APG flows, 5th AIAA Theoretical Fluid Mechanics Conference 23 - 26 June 2008, Seattle, Washington
  • Araya G., Leonardi S. and Castillo L., DNS of a passive scalar in a turbulent channel with local forcing at walls, 5th Int. Symposium on Turbulence and Shear Flow Phenomena, August 27-29, 2007, Munich, Germany.
  • Araya G., Leonardi S., Castillo L. and Orlandi P., DNS of turbulent channel flow with local forcing at walls, 17th Int. Symposium on Transport Phenomena, 4-8 September, 2006, Toyama, Japan.
  • Araya G., Bohr E., Jansen K., Castillo L., and Peterson K., Generation of turbulent inlet conditions for thermal boundary layers, 44th AIAA Aerospace Sciences Meeting and Exhibit, Reno, Nevada, Jan. 9-12, 2006, AIAA-2006-699.
  • Jia Y. and Araya G., The influence of the design parameters on the performance of thin film temperature sensors, Proceedings of World Tribology Congress III, ASME, September 12-16, 2005, Washington, D.C., USA.
  • Gutierrez G. and Araya G., Transient, three dimensional numerical model of a laser cutting process with phase change consideration, Proceedings of IMECE: ASME Congress Anaheim, California, November 15-21, 2004.
  • Gutierrez G. and Araya G., Analytical solution for a transient three-dimensional temperature distribution in laser assisted machining processes, Proceedings of NHTC04: 2004 ASME Summer Conference Charlotte, NC, USA.
  • Jia Y., Araya G. and Gutierrez G., Numerical analysis of response time for thin film temperature sensors in lubricated contact, Proceedings of NHTC04: 2004 ASME Summer Conference Charlotte, NC, USA.
  • Gutierrez G. and Araya G., Temperature distribution in a finite solid due to a moving laser beam, Proceedings of IMECE: ASME Congress Washington, D.C., November 15-21, 2003.

SELECTED PRESENTATIONS

  • Scale adaptive simulations over a supersonic car, 6th International  Conference on CFD, St. Petersburg, Russia, 2010.
  • A dynamic multi-scale approach for turbulent inflow generation in spatially-developing boundary layers with streamwise pressure gradients, 61th Annual Meeting, APS Division of Fluid Dynamics, November 2008, San Antonio, Texas, US.
  • Numerical heat transfer analysis in turbulent wall bounded flows: Invited seminar, University of Karlsruhe, January 2008, Karlsruhe, Germany. 
  • Active control of turbulent heat transfer by local forcing: an energy assessment, 60th Annual Meeting, APS Division of Fluid Dynamics, November 2007, Salt Lake City, Utah, US.
  • Thermal boundary layers simulations under adverse pressure gradients, 11th European Turbulence Conference, June 2007, Porto, Portugal.
  • DNS of a passive scalar in a turbulent channel with local forcing at walls, 59th Annual Meeting, APS Division of Fluid Dynamics, November 2006, Tampa, FL, US.
  • Numerical analysis of drag reduction in a turbulent channel with local forcing: Invited seminar, September 2006, University of Puerto Rico-Mayaguez, US.

MEMBERSHIP: ASME, AIAA, APS.

PEER REVIEWING ACTIVITIES: Reviewer of Journal of Fluid Mechanics, Journal of Turbulence, Int. J. of Heat and Fluid Flow, Int. J. of Thermal Sciences, Numerical Heat Transfer, ASME and Applied Mathematical Modelling. Proposal reviewer at CONICYT (Chile).
 

Meet the Team Prof. Ken Morgan Prof. Oubay Hassan Dr Ben Evans Dr Jason Jones Dr Clare Wood Dr Lakhdar Remaki Dr Guillermo Araya