Base Flow Model Validation

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,206.00
Award Year:
2005
Program:
STTR
Phase:
Phase I
Contract:
NNM05AA64C
Agency Tracking Number:
040073
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Combustion Research and Flow Technology
6210 Kellers Church Road, Pipersville, PA, 18947
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
929950012
Principal Investigator:
Neeraj Sinha
() -
sinha@craft-tech.com
Business Contact:
Paula Schachter
Business Official
(215) 766-1520
schachte@craft-tech.com
Research Institution:
University of Mississippi/National Center for Physical Acoustics
Paula Schachter
Coliseum Drive
University, MS, 38677
(215) 766-1520
Nonprofit college or university
Abstract
The innovation is the systematic "building-block" validation of CFD/turbulence models employing a GUI driven CFD code (RPFM) and existing as well as new data sets to be generated in this proposed program. Unified ke and algebraic stress (EASM) turbulence models, shown to adequately simulate fundamental high-speed jet data sets and now being validated with PIV data sets in a NASA Glenn program, will be used. These jet turbulence models will be improved to provide agreement with base region data for cold air data sets. Hot jet base region data sets are not readily to evaluate Prandtl number models affecting base heating. Inadequacies pose major issues with regard to analyzing base regions of rocket motors. A key innovation is to obtain high speed, hot jet base region data sets in the new, U.Miss/Oxford 12" quiet tunnel facility using advanced diagnostic techniques, extending the hot, supersonic jet data of Seiner. In Phase I, consistent modeling of cold flow base region data will be achieved, and, the hot jet base region problem will be initiated. This innovation fills a major gap at NASA improving upon base region simulation capabilities required for launcher design aerothermal predictions.

* information listed above is at the time of submission.

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