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Kenneth E. Jansen
Associate Professor, Mechanical, Aerospace and Nuclear Engineering
Education:
B.S., Mechanical Engineering, University of Missouri-Columbia, 1987
M.S., Mechanical Engineering, Stanford University, 1988
Ph.D., Mechanical Engineering, Stanford University, minor in Aeronautical Engineering, 1993
Career Highlights:
Jansen completed his Ph.D. in Mechanical Engineering with a minor in Aeronautical Engineering in 1993 under an Office of Naval Research Fellowship. Upon graduation he joined the Center for Turbulence Research, a joint NASA-Stanford program, where he was awarded a three-year post-doctoral research fellowship. In August 1996 he became a member of the Rensselaer faculty.
Research Areas:
Jansen's research interests include computational mechanics (with an emphasis on fluid dynamics) turbulence theory, simulation, modeling, and parallel computing. The primary aim of his research is to allow engineers to more accurately predict capability for fluid dynamics problems, especially those where turbulence plays a non-negligible role. His research seeks to develop simple models that describe the net effect or average of the turbulence upon the mean flow equations.
These models, when combined with a fully unstructured-grid finite element method, allow engineers to model arbitrarily complex flow problems. Unfortunately, these models are not yet able to describe all turbulent flows. Therefore, other forms of simulating turbulence are also being pursued. These forms are: 1) Large-Eddy Simulation (LES) where the large scale motions of the turbulence are resolved in the computation leaving only the fine scale motions to be modeled, 2) Direct Numerical Simulation (DNS) where all of the turbulent motions are resolved in the computational model. These alternate forms are useful both to develop a more basic understanding of the theory of turbulence and to help improve the averaged models used by engineers.
Selected Publications:
K. E. Jansen, C. Whiting, and G. M. Hulbert, "A Generalized-Alpha Method for Integrating the Filtered Navier-Stokes Equations with a Stabilized Finite Element Method," Computer Methods in Applied Mechanics and Engineering, in press (2000).
C. H. Whiting, K. E. Jansen, and S. Dey, "Hierarchical Basis in Stabilized Finite Element Methods for Compressible Flows," Computer Methods in Applied Mechanics and Engineering, accepted (2000).
C. H. Whiting, K. E. Jansen, and S. Dey, "A Stabilized Finite Element Method for the Incompressible Navier-Stokes Equations Using a Hierarchical Basis," International Journal of Numerical Methods in Fluids, in press (2000).
T. J. R. Hughes, L. Mazzei, and K. E. Jansen, "Large Eddy Simulation and the Variational Multiscale Method," Computing and Visualization in Science, 3 (2000) 47-59.
K. E. Jansen, S. S. Collis, C. Whiting, and F. Shakib, "A Better Consistency for Low-order Stabilized Finite Element Methods," Computer Methods in Applied Mechanics and Engineering, 174 (1999) 153-170.
K. E. Jansen, "A Stabilized Finite Element Method for Computing Turbulence," Computer Methods in Applied Mechanics and Engineering, 174 (1999) 299-317.
K. E. Jansen, "Computation of Turbulence with Stabilized Methods," invited paper in 4th Japan-US Symposium on Finite Element Methods in Large-Scale Computational Fluid Dynamics, April 1998.
K. E. Jansen, "Large-eddy Simulation Using Unstructured Grids," invited paper in Advances in DNS/LES, Greyden Press, (1997) 117-128.
K. E. Jansen, "Large-eddy Simulations of Flow Around a NACA 4412 Airfoil Using Unstructured Grids," in CTR Annual Research Briefs 1996, Center for Turbulence Research, Stanford University/NASA Ames Research Center, (1996) 225-232.
D. Haworth and K. E. Jansen, "Large-eddy Simulations on Unstructured Deforming Meshes: Towards Reciprocating IC Engines," in Proceedings of the 1996 Summer Program, Center for Turbulence Research, Stanford University/NASA Ames Research Center, (1996) 329-346.
Contact Information:
Kenneth E. Jansen
2044 Jonsson Engineering Center
(518) 276-6755
kjansen@scorec.rpi.edu
www.scorec.rpi.edu/~kjansen/