Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 20205
Amount: $197,229.00
Phase: Phase II
Program: SBIR
Awards Year: 1994
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
P.o. Box 11334, Blacksburg, VA, 24062
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 David C. Slack
 (703) 951-8051
Business Contact
Phone: () -
Research Institution
The objective of this Phase I research is to implement a conservative method for transferring data across arbitrary nonoverlapping zonal interfaces in the CFD code GASP version 3.0. This task will involve a linear interpolation of primitive variables in three dimensions with a gradient weighted flux correction method aimed at maintaining global flux conservation. For applications such as complex internal flows and hypersonic vehicles where engine/airframe integration analysis is crucial, sophisticated multi-block structured grid techniques are required. These techniques must not only be flexible and easy to use, but they must also be accurate. An arbitrary zonal interface interpolation scheme with global flux conservation will provide these characteristics. The Phase II portion of this research will build on the Phase I work by considering additional state variable interpolations, nonoveralpping grid topologies, time accurate calculations with moving grids, and interpolation across zonal boundaries between a structured and unstructured mesh. At the conclusion of this work, we will deliver and demonstrate the code to the Air Force including installation, software listings, a new GASP manual, and a training class.

* Information listed above is at the time of submission. *

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government