V  Kalyana Chakravarthy

Computer Science and Mathematics Division
Oak Ridge National Laboratory
2008 Bethel Valley Rd.
Oak Ridge, TN 37831-6367
(865) 574-3133

email:7vk@ornl.gov


Education:


Research Interests:

Computational Fluid Dynamics : Low Mach number methods, vortex methods, interface tracking schemes. Turbulence modeling :  Direct and Large eddy simulations (DNS & LES), kinematic mixing models, statistical closure methods.

Combustion modeling :  Subgrid modeling, flame-turbulence interactions.

Automotive catalysis : Heterogeneous combustion, flows through porous media, conjugate heat transfer, reduced reactor models.

Research Experience: Graduate Research Assistant, Georgia Institute of Technology (Sept. 1992 - Mar. 1999) Post Graduate Research Fellow, Computer Science and Mathematics Division, Oak Ridge National Laboratory (Mar. 1999 - Mar. 2000)

Post Doctoral Research Fellow, Computer Science and Mathematics Division, Oak Ridge National Laboratory (Mar. 2000 - present)
 

Publications:
``Linear Eddy Simulations of Reynolds number and Schmidt number effects on turbulent scalar mixing,''   V. K. Chakravarthy and S. Menon, Physics of Fluids, Vol. 13(2), 488-499, 2000.
``Subgrid Modeling of Turbulent Premixed Flames in The Flamelet Regime,''   V. K. Chakravarthy and S. Menon,  Flow, Turbulence and Combustion (Invited) ,  Vol. 65(2), 133-161, 2000.
``Large-Eddy Simulation of Turbulent Premixed Flames in the Flamelet Regime,''  V. K. Chakravarthy and S. Menon, Combustion Science and Technology, Vol. 7, 1-48, 2000.
``Multi-dimensional simulations of cold start transients in a catalytic converter under steady inflow conditions,'' V. K. Chakravarthy, S. Daw, J. C. Conklin, and E. F. D'Azevedo (under preparation)

Conference presentations:

``Towards  a device-scale model for catalytic converters,''  V. K. Chakravarthy, J. C. Conklin, S. Daw, and E. F. D'Azevedo,  2000 National Laboratory Catalysis Research Conference,  Chicago, Illinois, Oct., 2000.
``Modeling of Turbulent Premixed Flames in The Flamelet Regime,''   V. K. Chakravarthy, and S. Menon, First International Symposium on Turbulence and Shear Flow Phenomena, Santa Barbara, California, Sep., 1999.
``Large Eddy Simulations of Bluff Body Stabilized Flames,''  V. K. Chakravarthy, and S. Menon, Third ASME/JSME Joint Fluids Engineering Conference, San Francisco, California, July, 1999.
``Parallel Simulations of Turbulent Reacting Sprays,''  S. Menon, S. Pannala, W.-W. Kim, V. K. Chakravarthy, and W. J. Henry,  30th AIAA Plasmadynamics and Lasers Conference, Norfolk, VA, June -July, 1999, AIAA Paper 99-3438.
``Large-Eddy Simulation of Turbulent Fuel Sprays,''  S. Menon, S. Pannala, W.-W. Kim, V. K. Chakravarthy, and W. J. Henry, 1999 DoD High Performance Computing Modernization Program Conference, Monterey, California, June, 1999.
``Large Eddy Simulation of Stationary Premixed Flames Using a Subgrid Flamelet Approach,''  V. K. Chakravarthy and S. Menon, Second AFOSR International Conference on DNS and LES, New Brunswick, New Jersey, June, 1999.
``Characteristics of a Subgrid Model for Turbulent Premixed Combustion,''  V. K. Chakravarthy, and S. Menon, 33rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference and ExhibitSeattle, Washington, July, 1997.
``Turbulent Premixed Flame Propagation in Microgravity,''  S. Menon, M. Disseau, V. K. Chakravarthy, and J. Jagoda, Fourth  International Micro-gravity Combustion Workshop, Cleveland, Ohio, May, 1997.
``On Large-eddy Simulations of Non-homogeneous Flows,''  V. K. Chakravarthy, and S. Menon, 35th AIAA Aerospace Sciences Meeting and Exhibit, Reno, Nevada, Jan 1997.
``Simulation of Unsteady Turbulent Jet Flow Using a Localized Dynamic Subgrid Model,''  V. K. Chakravarthy, and S. Menon, International Mechanical Engineering Congress and Exposition, Atlanta, Georgia,  Nov., 1996.
``Large-Eddy Simulations of Turbulent Premixed Flames in Couette Flow,'' S. Menon and V. K. Chakravarthy, 32rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Orlando, Florida, July 1996.
 

Reviewer :

  • Physics of Fluids (American Institute of Physics)
  • SAE
  • DOE
  • References provided upon request.