NASA SBIR 00-1 SOLICITATION

FORM 9B - PROJECT SUMMARY

PROPOSAL NUMBER 00-1 05.01-9994 (Chron: 000006 )
PROJECT TITLE
A Fast, Grid-Free Vortex Method for Aerodynamic Separation and Turbulence

TECHNICAL ABSTRACT (LIMIT 200 WORDS)
Turbulent flow modeling constitutes the primary the primary means by which aerodynamic flows associated with aircraft design and performance are analyzed. Traditional turbulence models, which attempt to capture the physics of the Reynolds stress correlation, are not capable of predicting flow in such complex situations as high-lift, advanced configurations, Reynolds number sensitivity of separation progression, noise generation by unsteady separated flows, among many others.

KTI proposes here to employ a grid-free, vortex-based methodology for the simulations of complex, low-speed, turbulent aerodynamic flows. Our innovative approach represents a fundamentally different methodology compared to existing techniques which are based on Reynolds-averaged
Navier-Stokes solutions.

Recent work by KTI has shown how high-Reynolds number, incompressible turbulent flows in a number of complex settings have been successfully simulated using the new methodology. In this project, the flow over a NASA-benchmark, high-lift configuration will be simulated and compared to experimental data in an attempt to prove the feasibility of the new methodology in predicting complex aerodynamic phenomena. During Phase II, we will continue the development, testing, and validation of the code across a wide range of aerodynamic applications.

POTENTIAL COMMERCIAL APPLICATIONS
A successful completion of this project will represent a major breakthrough in turbulence modeling. The proposed technology and codes will provide an advanced tool for the modeling and prediction of transition and turbulence in numerous internal and external flow applications ranging from low to high speed aircraft, internal combustion engines, among many others. Even a small improvement in the design of such systems, assisted by our technology, may lead to enormous savings in operational costs and/or substantial increases in savings.

NAME AND ADDRESS OF PRINCIPAL INVESTIGATOR (Name, Organization Name, Mail Address, City/State/Zip)
Dr. Athanassios Dimas
Krispin Technologies, Inc.
1370 Piccard Drive, Suite 210
Rockville , MD 20850 - 4304

NAME AND ADDRESS OF OFFEROR (Firm Name, Mail Address, City/State/Zip)
Krispin Technologies, Inc.
1370 Piccard Drive, Suite 210
Rockville , MD 20850 - 4304