Dr. Isam Janajreh
Dr. Isam Janajreh Professor & Associate Chair for Graduate Programs

Professor, Department of Mechanical Engineering, and Associate Chair for Graduate Programs

Dr. Isam Janajreh is Professor and Associate Chair of the Mechanical Engineering department at Khalifa  University. He received his Ph.D. and Masters from Virginia Tech in Engineering Science and Mechanics and Mechanical Engineering respectively. He received his B.Sc. in Mechanical Engineeering from Jordan University of Science and Technology. Dr. Janajreh’s research focus is on solid-fluid interactions, turbulence modeling and mixing, and thermomechanical coupling.  He was Visiting Professor at Virginia Tech at the Engineering Science and Mechanics and Maths departments through 1998 and later joined Michelin R&D, USA as a Tire and Automotive Research Engineer, analyzing wet tire traction and nonlinear structure analysis, vehicle dynamics, and rubber material modeling.

In 2001, Dr. Janajreh moved to Michelin, France as the principal investigator to the $3,000,000 European Project “Tire Hydroplaning: Modeling and Analysis”. After the project’s completion, in 2004 he returned to Washington DC to work on fundamental research and academia with NIST in the Building and Fire Lab as a contractor and as an adjunct ME professor at JHU, UMD, UMBC and at the Crash Analysis Center at GWU. He relocated to join Parametric Solutions Inc. in Florida as Fluid-Solid Interaction Analyst heading challenging US governments sponsored projects including: After burner combustor with GE and Pratt; Toroid Combustor Analysis with Dyna Energy; first turbine stage flow and structure analysis with Belak; and Engine Bay thermal flow analysis with ATG aircraft. He also continued his academic affiliation by teaching at FAU in the Ocean and ME engineering Departments.

Dr. Janajreh joined Khalifa University in 2007 continuing his research while also teaching Advanced Renewable Energy Conversion System, Fundamentals of Combustion, Advanced Fluid Dynamics, and Computational Fluid Dynamics. He has authored over 15 referenced publications on fluid dynamics and structure interaction, made more than 35 contributions to international conferences and is a key contributor to three Michelin patents (Catamran, Primacy, X-one) and three books (traction, rolling resistance, noise). He is a regular reviewer for several international journals, and has been a member of ASME, TS&T, Rubber Division, ASCE, and advisor to other international scientific committees and conferences. 

  • PhD. Engineering Science and Mechanics, Virginia Tech, Virginia, USA, (1998)
  • M.S. Engineering Science and Mechanics, Virginia Tech, Virginia USA (1994)
  • M.S. Mechanical Eng. Virginia Tech, Virginia, USA (1992)
  • B.S. Mechanical Eng. Jordan University of Science and Technology, Amman, Jordan (1989)
  • MEEN 201 Dynamics
  • MEEN 325 Solid Mechanics/Strength of Materials
  • MEEN 350 Vibration
  • MEEN 360 Operation Methods for ME Engineering
  • MEEN 453 Turbomachinery
  • MEEN 604 Advanced Fluid Mechanics
  • MEEN 614 Advanced Renewable Energy
  • MEEN 630 Advanced Engineering Mathematics
  • MEEN 721 Computational Fluid Dynamics
  • MEEN 765 Acoustics and Noise Control



Research Thrusts

  • Energy and the Environment
  • Fluid Solid Interaction mechanics
  • Thermal Science

Research Topics

  • Gasification and Pyrolysis (reactive flow)
  • Transesterification and Biodiesel Production/synthesis
  • Direct Contact Membrane Distillation and flow in Porous Media
  • Flow induced Vibration and modal decomposing of the thermal flow
  • Freeze Desalination and Multiple Physics Flow

Research Projects

  • Gasification of Different Waste Streams: Including MSW, Plastics, tire Shreds, Spent pot lining, Shale Oil: This project involves conducting TGA analysis to capture the thermal decomposition of the feedstock and accordingly inferring their proximate analysis, then evaluates their main event devolatalization and combustion kinetics that used in high fidelity reactive flow modeling. In parallel low fidelity systematic analysis is carried out as a benchmark to the best conversion metrics.  Should you like analytical analysis such as TGA, ICP, GC/MS and the combustion of solid waste using Drop Tube Reactor and you enjoy multi-physics flow simulation using Fluent this is a nice project to learn and advance your knowledge.   
  • Desalination via membrane distillation known as Direct Contact Membrane Distillation. This project involves experimental setup and analyses and high fidelity CFD simulation of conjugated flow. You will have a chance to build your desalination unit using acrylic blocks and using (in-house electro-spun or commercial) super-hydrophilic thin membranes that separate two open flow chambers, one represents a fresh and another represents the brine. In this research numerous parameters as the role of membrane porously, thickness, conductivity, flow conditions (Re, temperature, turbulence intensity)  have been investigated. You can push this research forward  by start looking at what is happening to the brine diffusion  adjacent to the membrane to improve the process efficiency in increasing the temperature and reducing the concentration polarization beyond what has been reported. 
  • Freeze desalination which is a new trend in desalination due to the very low energy of fusion which is only 1/7th of the latent heat which consumed during thermal processes. You can use your 1st principle of cooling to estimate the time and energy utilization in the brine freezing process. Most importantly you will notice brine diffusion/migration occurs during freezing pushing the highly concentrated bine forward and leaving the lower salinity frozen crystal behind. You can guess that successive freezing and melting is the way forward. The project involve experimental setup at the macro and micro level: Using freeze dryer apparatus per the setup below and simple  and micro-level using thermos electric Peltier setup. The goal is to gain more fundamental of the freezing as quenching will lead to homogenized freezing and trapping the salts while controlled directional freezing enables one to manipulate the diffusion of the brine leading to a lower salinity crystallization and hence taking advantage of low heat of fusion for energy saving. Your role is to design the perfect crystallizer, carry out two phase flow simulation that involves solid phase transition following the phase transition of the brine, and finally you may able to carry and design the entire process systematically emphasizing its feasibility.  
  • Thermo-acoustic is another active project that demonstrates the conversion of the waste thermal energy or concentrated solar energy  into acoustic energy using and developing an acoustic engine, then use this source of acoustic energy as a prime mover  to drive a heat pomp. A few papers have been published focusing on the role of the fluid medium, thermal energy intensity, and the geometry of the resonator. There are plenty of  work to design the generator and the development of high fidelity conjugated heat transfer and optimizing the viscous penetration and thermal dissipation lengths. The project involved Design, Build and Test at every level and as system integration at high Carnot efficiency.
  • Flow over breathing/slotted/perforating bodies and variable pitching aero foil. Over  one set of geometries one is keen in reducing the drag, and in  another the goal is to increase the lift. It all falls towards manipulating the boundary layer. The turbosail, optimizing suction & blowing over bluff bodies, flow over rotating bodies (single rotating cylinder, rotating turbine rotors, or flow over variable pitching turbine blades all belongs to this category.

Advisor/Co-advisor to the following students:

  • Hongtao Zhang, PhD Student
  • Ussama Ali, PhD Student
  • Khawlah Alabdouli, MSc Student
  • Hussain Alshaikh, MSc Student
  • Rami Homsi, MSc Student