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
Contract: NNX12CD66P
Agency Tracking Number: 115662
Amount: $124,855.00
Phase: Phase I
Program: SBIR
Awards Year: 2012
Solicitation Year: 2011
Solicitation Topic Code: A2.10
Solicitation Number: N/A
Small Business Information
MO, Chesterfield, MO, 63006-6971
DUNS: 126752018
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Chris Nelson
 Principal Investigator
 (425) 778-7853
Business Contact
 Alan Cain
Title: Business Official
Phone: (314) 373-3311
Email: abcain@ITACLLC.com
Research Institution
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. *

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
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government