• Dr. Ayala received his BS in Mechanical Engineering with honors (Cum Laude) from Universidad de Oriente (Venezuela) in 1995, MS in Mechanical Engineering in 2001 and PhD in Mechanical Engineering in 2005, both from University of Delaware (USA). Dr. Ayala is currently serving as Assistant Professor of Mechanical Engineering Technology Department, Frank Batten College of Engineering and Technology, Old Dominion University, Norfolk, VA.
  • Selected Publications

    Articles In Academic Journals

    Year Title
    2016 Settling velocity of small inertial particles in homogeneous isotropic turbulence from high-resolution DNSInternational Journal of Multiphase Flow. 217-231.
    2016 Study of Local Turbulence Profiles Relative to the Particle Surface in Particle-Laden Turbulent FlowsASME JournalofFluidsEngineering. 041203.
    2015 Effects of forcing time scale on the simulated turbulent flows and turbulent collision statistics of inertial particlesPhysics of Fluids. 015105.
    2015 Effects of gravity on the acceleration and pair statistics of inertial particles in homogeneous isotropic turbulencePhysics of Fluids. 033304.
    2014 DNS of hydrodynamically interacting droplets in turbulent clouds: parallel implementation and scalability analysis using 2D domain decompositionComputer Physics Communications. 3269-3290.
    2014 Pore-Scale Lattice Boltzmann Modeling and 4D X-ray ComputedMicrotomography Imaging of Fracture-Matrix Fluid TransferTRANSPORT IN POROUS MEDIA. 449-468.
    2014 Relative permeability of homogenous-wet and mixed-wet porous media asdetermined by pore-scale lattice Boltzmann modelingWATER RESOURCES RESEARCH. 3672-3689.
    2014 Study of forced turbulence and its modulation by finite-size solidparticles using the lattice Boltzmann approachComputers & Mathematics with Applications. 363-380.
    2013 Analysis and parallel implementation of a forced N-body problemJournal of Computational Physics. 235-258.
    2013 Kinematic and dynamic collision statistics of cloud droplets fromhigh-resolution simulationsNew Journal of Physics.
    2013 Microstructural evolution of carbon nanotube fibers: deformation andstrength mechanismNanoscale. 2002-2008.
    2013 Parallel implementation and scalability analysis of 3D Fast FourierTransform using 2D domain decompositionParallel Computing. 58-77.
    2013 Turbulent collision-coalescence in maritime shallow convectionATMOSPHERIC CHEMISTRY AND PHYSICS. 8471-8487.
    2008 Effects of turbulence on the geometric collision rate of sedimentingdroplets. Part 1. Results from direct numerical simulationNew Journal of Physics.
    2008 Effects of turbulence on the geometric collision rate of sedimentingdroplets. Part 2. Theory and parameterizationNew Journal of Physics.
    2008 Turbulent collision efficiency of heavy particles relevant to clouddropletsNew Journal of Physics.
    2007 A hybrid approach for simulating turbulent collisions ofhydrodynamically-interacting particlesJournal of Computational Physics. 51-73.
    2007 Effects of aerodynamic interactions on the motion of heavy particles ina bidisperse suspensionJournal of Turbulence. 1-28.
    2006 Comments on “Droplets to drops by turbulent coagulation”JOURNAL OF THE ATMOSPHERIC SCIENCES. 2397-2401.
    2006 Effects of stochastic coalescence and air turbulence on the sizedistribution of cloud dropletsAtmospheric Research. 416-432.
    2006 Probability distributions of angle of approach and relative velocity forcolliding droplets in a turbulent flowJOURNAL OF THE ATMOSPHERIC SCIENCES. 881-900.
    2005 Improved formulations of the superposition methodJOURNAL OF THE ATMOSPHERIC SCIENCES. 1255-1266.
    2005 Numerical modelling of thermal evolution in hot metal coilingREVISTA DE METALURGIA. 488-492.
    2005 Reconciling the cylindrical formulation with the spherical formulationin the kinematic descriptions of collision kernelPhysics of Fluids.
    2005 Theoretical formulation of collision rate and collision efficiency ofhydrodynamically interacting cloud droplets in turbulent atmosphereJOURNAL OF THE ATMOSPHERIC SCIENCES. 2433-2450.

    Conference Papers

    Year Title
    2017 Flipped classroom as blended learning in a fluid mechanics course in engineering technology
    2017 Implementing peer-review activities for engineering writing assignments
    2017 Manual revision process for project-based laboratory instruction
    2015 The Use of Polleverywhere in Engineering Technology Classes to Stimulate Student Critical Thinking and Motivation
    2011 CollisionExplorer: a tool for visualizing droplet collisions in a turbulent flow.  669-680.
    2011 High-resolution simulation of turbulent collision of cloud droplets.  401-410.
    2011 Kinematic and dynamic pair collision statistics of sedimenting inertial particles relevant to warm rain initiation.  072016.
    2011 Methods and issues for highly-scalable simulation of isotropic homogeneous turbulence
    2011 Towards an integrated multiscale simulation of turbulent clouds onPetaScale computers

    Research Overview

  • Multiphase flows, turbulent flows, transport of particles in fluid flows, compressible flows, heat transfer, numerical modeling, and high performance parallel computing and scientific computation
  • Grants

  • Rigorous Study Pipeline Erosion in Bends Focused on Fluid-Particle Interaction  awarded by American Chem. Soc Petroleum RF 2017 - 2020
  • IDW Badges  awarded by ODU QEP 2017 - 2018
  • Design, Development, And Demonstration of A Pilot-Scale Mobile Hydrolyzer For Algae Processing  awarded by National Science Foundation 2016 - 2018
  • Revisiting the design of elbow configurations to reduce erosion based on the study of particle-fluid interaction dynamics  awarded by ODU Program for Undergraduate Research and Scholarship 2016
  • ODU&TCC Photovoltaic Training/Research Facility  awarded by The Oak Hill Fund 2014 - 2016
  • ODU-TCC Virginia Beach Photovoltaic Facility  awarded by The Oak Hill Fund 2014 - 2016
  • Using Literature to Teach technology Based STEM Skills to K-2 Learners- Lit-STEM K-2  awarded by National Science Foundation – ITEST - 2016
  • 2015 Summer Research Program for 7 Brazilian Students on Research Activities  awarded by The Brazil Scientific Mobility Program 2015
  • A study on In-Cylinder Air Dispersion Utilizing Turbulence Inducers Forward of Intake Valves on a Four Cylinder Spark Ignition Engine  awarded by ODU Fall 2015 Undergraduate Research Grant 2015
  • Lattice Boltzmann Method Simulation For 3D Crystal Growth  awarded by ODU Summer 2015 Undergraduate Research Grant 2015
  • Critical Thinking: Beyond Theoretical Knowledge  awarded by ODU Faculty Innovator Grants Award 2014 - 2015
  • Exploration of Additive Manufacturing for Naval Applications  awarded by Naval Engineering Education Consortium 2014 - 2015
  • Bridging Particle-Resolved and Point-Particle Based Simulation for Turbulent Particle-Laden Flow Using New Heterogeneous High-Performance Computer  awarded by National Science Foundation, CBET-1235974 2013 - 2015
  • Advanced Single Axis Solar Tracking System for Enhanced Energy Generation  awarded by Center for Innovative Technology, Commonwealth Research Commercialization Fund, Matching Funds Program 2014
  • Faculty Innovator Grant: Critical Thinking: Beyond Theoretical Knowledge  awarded by Center for Learning and Teaching Old Dominion University 2014
  • Travel to ASME Workshops  awarded by 2014 Batten College of Engineering and Technology Dean’s Faculty Development Grant 2014
  • Computing Resources Request for “Turbulent Collision Statistics of Hydrodynamically Interacting Droplets Simulated by a Multiscale Approach”  awarded by XSEDE ATM130019 2013 - 2014
  • Enhancement of Virginia Beach Photovoltaic Facility  awarded by Oak Hill Fund 2014 -
  • Virginia Beach Photovoltaic Facility  awarded by Oak Hill Fund 2014 -
  • Expertise Keywords

  • Computational Mechanics
  • Engineering : I have been directly involved in 20 different engineering projects, most of them related to the petroleum and natural gas industry.
  • Fluid Diffusion
  • Heat Transfer
  • High Performance Parallel Computing and Scientific Computation
  • Mechanical Engineering
  • Multiphase flows
  • Numerical Modeling
  • Solidification of crystals
  • Transport of particles in fluid flows
  • Education And Training

  • Ph.D. in Mechanical Engineering, University of Delaware 2005
  • M.Sc. in Mechanical Engineering, University of Delaware 2001
  • B.S. in Mechanical Engineering, Universidad de Oriente 1995
  • Full Name

  • Orlando Ayala