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Advanced Nongray Radiation Module in the LOCI Framework for Combustion CFD

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNM06AA71C
Agency Tracking Number: 050188
Amount: $99,921.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: T8.02
Solicitation Number: N/A
Solicitation Year: 2005
Award Year: 2006
Award Start Date (Proposal Award Date): 2006-01-26
Award End Date (Contract End Date): 2007-01-22
Small Business Information
215 Wynn Dr. 5th Floor
Huntsville, AL 35805-1926
United States
DUNS: 18516
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Sarm Rani
 Principal Investigator
 () -
Business Contact
 Ashok Singhal
Title: Business Official
Phone: (256) 726-4858
Research Institution
 Mississippi State University
 Not Available
Box 9637 300 Butler Hall
Mississippi State, MS 39762
United States

 (662) 325-2756
 Domestic nonprofit research organization

In this STTR, an innovative, efficient and high fidelity computational tool to predict radiative heat transfer will be implemented in the LOCI framework. Radiative heat transfer in rocket engine combustion can play a significant role in determining engine performance and combustor wall heat loading. Radiation will also become increasingly important as hydrocarbon-based fuels are used in rocket propulsion as alternatives to hydrogen, for in-situ propellants, and in the development of nontoxic fuels for reaction control thrusters. Currently there is no radiation modeling capability in the LOCI framework, the basis for codes used by NASA and their contractors to design and analyze rocket engines. CFDRC has teamed with Mississippi State University (MSU), the original developer of LOCI, to develop the needed radiation module. In Phase I, the well-established Control-Angle Discrete Ordinates Method will be implemented for solving the Radiative Transfer Equation. This module will be used in the combustion code, CHEM, and tested with proven gray and nongray gas radiation models to establish the framework for future development and to demonstrate the feasibility of radiation modeling using LOCI. In Phase II, efforts will focus on developing increasingly accurate and robust nongray gas models such as the narrow band models, Weight-Sum-of-Gray-Gases method, and the innovative Full Spectrum Correlated k-distribution model.

* Information listed above is at the time of submission. *

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