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- Christopher A Kennedy, Mark H Carpenter
- 2001

Since its founding, NASA has been dedicated to the advancement of aeronautics and space science. The NASA Scientific and Technical Information (STI) Program Office plays a key part in helping NASA maintain this important role. The NASA STI Program Office is operated by Langley Research Center, the lead center for NASA's scientific and technical information.… (More)

- Christopher A Kennedy, Mark H Carpenter, And R Michael Lewis
- 1994

The derivation of low-storage, explicit Runge-Kutta (ERK) schemes has been performed in the context of integrating the compressible Navier-Stokes equations via direct numerical simulation. Optimization of ERK methods is done across the broad range of properties, such as stability and accuracy eeciency, linear and nonlinear stability, error control… (More)

- Mark H Carpenter, Christopher A Kennedy

- James C Sutherland, Christopher A Kennedy
- 2003

Previous studies on physical boundary conditions for flame–boundary interactions of an ideal, multicomponent, compressible gas have neglected reactive source terms in their boundary condition treatments. By combining analyses of incompletely parabolic systems with those based on the hyperbolic Euler equations, a rational set of boundary conditions is… (More)

- Sophia Lefantzi, Christopher A Kennedy, Jaideep Ray, Habib N Najm

Generally, adaptively refined meshes aim to concentrate grid points in regions of interest while leaving the bulk of the domain sparsely meshed, thus reducing the computational time. Structured adaptively refined meshes in particular overlay grids of different refinement until the required accuracy is achieved. If the depth of the grid hierarchy is an issue… (More)

- Christopher A Kennedy, Mark H Carpenter, A Singer, C L Rumsey, K R Meadows, R D Joslin +3 others
- 1997

Acknowledgments The authors would like to thank B.

Multimodal distribution functions that result from Monte Carlo simulations can be interpreted by superimposing joint probability density functions onto the contour space of the simulated calculations. The method is demonstrated by analysis of the pathway of a radioactive groundwater contaminant using an analytical solution to the transport equation.… (More)

- Manson Fung, Christopher A Kennedy
- 2004

Assessing the sustainability of a city-region requires consideration of the complex interactions between economic, environmental, and social factors. Until recently, most urban models have dealt with these factors independently. For instance, past urban economic models (Anas, 1995; Landis, 1995) generally focused on the overall economic impacts of different… (More)