Hybrid Approach for Modeling Chemical Kinetics and Turbulence Effects on Combustion-Instability

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,923.00
Award Year:
2011
Program:
SBIR
Phase:
Phase I
Contract:
NNX11CG64P
Award Id:
n/a
Agency Tracking Number:
104909
Solicitation Year:
2010
Solicitation Topic Code:
A2.02
Solicitation Number:
n/a
Small Business Information
AL, Huntsville, AL, 35805-1944
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
Y
Duns:
185169620
Principal Investigator:
RanjanMehta
Principal Investigator
(256) 726-4858
sxh@cfdrc.com
Business Contact:
SilviaHarvey
Business Official
(256) 726-4858
sxh@cfdrc.com
Research Institute:
Stub




Abstract
Combustion instabilities pose a significant technical risk in the development of liquid and solid rocket motors. Much of the effort in modeling combustion instabilities has focused either on systems-level tools, or use of detailed computational fluid dynamics (CFD) to simulate all the involved processes. The important effects of finite-rate chemical kinetics and turbulence-chemistry interactions have been neglected in combustion instability modeling. In this SBIR project, CFD Research Corporation (CFDRC) will team up with Gloyer-Taylor Laboratories (GTL) to develop a hybrid approach by combining CFD capabilities with a systems-level instability modeling approach, the latter based on the Universal Combustion Device Stability (UCDS) process. These capabilities will be used to quantify the effects of finite-rate chemistry and turbulence-chemistry interactions on combustion instabilities. In Phase I, feasibility of the proposed approach will be demonstrated by combining 2-D Reynolds Averaged Navier Stokes and Large Eddy Simulation computations with the UCDS framework. In Phase II, the instability analysis will be enhanced by coupling: (1) 3-D CFD analysis; and (2) Improved UCDS process with more accurate treatment of boundary conditions and the flame. The proposed approach will enable an accurate combustion instability analysis of rocket motors, gas turbine combustors, and ramjet and scramjet engines.

* 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

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government