Website of Daniel W. Barnette


Exceptional Service in the National Interest

Most recent projects are listed first.

• Red Storm Supercomputer Testing and Evaluation (2002-4)

This project involves developing test and evaluation software for Cray's Red Storm Supercomputer, to be delivered to Sandia in 2004.

This site is password protected. Contact me for further information.

• Teraflops Supercomputer Testing and Evaluation (2000-2004)

This project involves maintaining and developing the test and evaluation software for Intel's Teraflops Supercomputer. 

This site is password protected.  Contact me for further information.

• BREAKUP CODE FOR OVERSET GRID APPLICATIONS ON PARALLEL COMPUTERS

The BREAKUP (patent #6,356,860) code is software designed to divide overset grids into load balanced subgrids for parallel computing. Visit this site for various examples and solutions for ocean modeling around the Greater Antilles islands and flow around an airfoil. A link is provided to the Sandia report.

• AUTOMATED GRID GENERATION CLOSELY COUPLED TO FLOW SOLVERS

This site presents a fascinating computational grid generation approach (patent #6,519,553) I discovered that is ripe for research. The basic idea is to develop grids that annihilate the convective truncation error terms in the discretized Navier-Stokes equations. Resulting equations indicate that grids and flow fields can be generated with little user interaction, resulting in an automated grid generation technique. A link is provided to the Sandia report. Further developments may result in significant breakthroughs in structured grid generation.

• Genetic Programming

Results are presented for genetically-derived algorithms applied to robotic 'bugs' (simulated robotic vehicles) finding a signal source.

• BALLISTICS, HYPERSONICS, ...

Sandia's internal ballistics code ONEGUN is discussed. The code SHOCKS is also discussed. This code predicts shock standoff parameters for cones, spheres, and sphere cones. Stagnation heating is also predicted for blunt shapes. Other results from past projects are discussed.

• SHOCKS

Program SHOCKS is a computer code for fast-analysis of familiar shapes in super- and hypersonic flow. Details are discussed.

• LOCKHEED MARTIN / SHARED VISION PROGRAM
      (This site is password protected)

Lockheed Martin and Sandia joined forces to port production computational fluid dynamics codes to run efficiently on Sandia's parallel compute clusters. Check this site for more details. (Contact me for access.)