Eulerian Transported PDF Framework for Scramjet Flowpath Analysis

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$124,935.00
Award Year:
2012
Program:
SBIR
Phase:
Phase I
Contract:
NNX12CF18P
Award Id:
n/a
Agency Tracking Number:
114217
Solicitation Year:
2011
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:
Ranjan Metha
Principal Investigator
(256) 726-4964
proposals-contracts@cfdrc.com
Business Contact:
Silvia Harvey
Business Official
(256) 726-4858
sxh@cfdrc.com
Research Institute:
Stub




Abstract
Scramjet engines promise to become a next-generation revolutionary technology for aerospace applications. Some of the significant challenges in rapid development of scramjets include complex flow physics; combustion; flow-combustion interactions; propulsion air-frame integration; coupled with difficulty in producing realistic experimental conditions. The role of Computational Fluid Dynamics (CFD), therefore, is crucial in design and development of the scramjet engines. The overall innovation includes development of a comprehensive Eulerian transported PDF methods framework coupled with an efficient RANS/LES flow solvers for simulating high-speed turbulent reacting flows and an innovative chemistry acceleration module achieving up to two orders of magnitude reduction in computing times for the Eulerian TPDF framework. In Phase I feasibility of the proposed Eulerian transported PDF approaches for accurately capturing turbulence-chemistry interactions will be demonstrated and analyzed. In Phase II, we will perform additional developments in the chemistry acceleration module and the Eulerian TPDF framework, such that a comprehensive, turbulent-combustion modeling framework, for low and high-Mach number reacting flows will be available at the end of Phase II.

* information listed above is at the time of submission.

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