David E. (Dave) Stevens is a computer scientist at CASC, working with the ALE3D code project in B division. His current work involves optimizing the linear solvers used in this project and accessed through the Finite Element Interface (FEI) developed at Sandia National Laboratories, Albuquerque, NM. Dave's research interests include designing and optimizing complex parallel models and formulating finite element discretizations for fluid flow. He has a particular fondness for approximate projection methods for incompressible flow.

Dave graduated in 1994, with an earned Ph.D. in Applied Mathematics from the University of Washington. He has held postdoc positions at the Courant Institute at NYU, and at the Computational Directorate at Lawrence Berkeley Laboratory, (LBL).

David works on these projects: ALE3D, matrixed to B division.

David E. Stevens, S. Chan, and P. Gresho: "A Variationally Derived Projection Method for Incompressible Flow," Int. J. Num. Meth. Fluids. Submitted, May 2001.

A. S. Ackerman, O. B. Toon, D. E. Stevens, A. J. Heymsfield, V. Ramanathan, E. J. Welton: "Reduction of Tropical Cloudiness by Soot," Science, 288, 1042-1047, 2000.

David E. Stevens, A. S. Almgren, J. B. Bell, V. E. Beckner, and C. A. Rendleman: "Small Scale Processes and Entrainment in a Stratocumulus Marine Boundary Layer," J. Atmos. Sci., 58, 567-581, 2000.

David E. Stevens, A. S. Almgren and J. B. Bell: "Adaptive Simulations of Trade Cumulus Convection," University of California report: UCRL-JC-133201, 1999.

David E. Stevens and C. S. Bretherton: "Effects of Grid Resolution on Large-Eddy Simulation of Radiatively Driven Entrainment Through a Strong Inversion," Quart. J. Roy. Met. Soc., 125, 425-439, 1999.

Christopher S. Bretherton, M. K. MacVean, P. Becthtold, A. Chlond, W. R. Cotton, J. Cuxart, H. Cjuipers, M. Khairoutdinov, B. Kosovic, D. Lewellen, C. H. Moeng, P. Siebesma, B. Stevens, D. E. Stevens, R. I. Sykes, and M. C. Wyant, 1998: "An Intercomparison of Radiatively-driven Entrainment and Turbulence in a Smoke Cloud, as Simulated by Different Numerical Models," Quart. J. R. Meteor. Soc, 125, 400-425, 1999.

David E. Stevens and C. S. Bretherton: "A New Forward-in-time Advection Scheme and Adaptive Multilevel Flow Solver for Nearly Incompressible Atmospheric Flow," J. Comput. Phys., 129, 284-295, 1997.

Matthew C. Wyant, C. S. Bretherton, H. A. Rand and D. E. Stevens: "Numerical Simulations and a Conceptual Model of the Stratocumulus to Trade Cumulus Transition." J. Atmos. Sci., 54, 168-192, 1996.

Scott A. Grinnell, C. S. Bretherton, D. E. Stevens and A. M. Fraser: "Vertical Mass Flux Observations in Hawaiian Trade Cumulus Clouds by Doppler Radar," J. Atmos. Sci., 53, 1870-1886, 1995.