Extension of the Eddy Dissipation Concept for Improved Low-Cost Turbulence-Chemistry Interaction Modeling

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$124,855.00
Award Year:
2012
Program:
SBIR
Phase:
Phase I
Contract:
NNX12CD66P
Agency Tracking Number:
115662
Solicitation Year:
2011
Solicitation Topic Code:
A2.10
Solicitation Number:
n/a
Small Business Information
Innovative Technology Applications Co.
MO, Chesterfield, MO, 63006-6971
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
126752018
Principal Investigator:
Chris Nelson
Principal Investigator
(425) 778-7853
ccnelson@ITACLLC.com
Business Contact:
Alan Cain
Business Official
(314) 373-3311
abcain@ITACLLC.com
Research Institution:
n/a
Abstract
The one CFD modeling area that has remained the most challenging, yet most critical to the success of integrated propulsion system simulations, is turbulence modeling. There is a need to develop mid-level CFD models for the interaction of turbulence and chemical reactions that give superior results to the simple models (e.g., Magnussen's Eddy Dissipation Concept), but which do not require the large computational expense of the very complex models (e.g., PDF evolution methods or the Linear Eddy Method). This SBIR program proposes to develop this capability by extending the Eddy Dissipation Concept of Magnussen (EDC) to allow for improved modeling of reacting flows?especially diffusion flames where the flow contains significant regions of mixing prior to combustion. In Phase I, the proposed approach will be demonstrated using a Magnussen model with a global one-step reaction mechanism. The effect of the modified model on the predicted combustion relative to the original Magnussen EDC will be demonstrated on a test case.

* information listed above is at the time of submission.

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