ADVANCED MODELLING OF COMBUSTION SYSTEMS

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 11949
Amount: $49,957.00
Phase: Phase I
Program: SBIR
Awards Year: 1990
Solitcitation Year: N/A
Solitcitation Topic Code: N/A
Solitcitation Number: N/A
Small Business Information
Creare, Inc.
P.o. Box 71, Hanover, NH, 03755
Duns: 072021041
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Christopher J. Crowley
 Principal Engineer
 (603) 643-3800
Business Contact
 JAMES A. BLOCK
Title: PRESIDENT
Phone: (603) 643-3800
Research Institution
N/A
Abstract
THE ACCURATE PREDICTION OF FLOW, SPECIES CONCENTRATION AND TEMPERATURE IS ESSENTIAL TO THE CHARACTERIZATION AND DESIGN OPTIMIZATION OF COMBUSTORS. TO THIS END, IT IS ESSENTIAL TO INCLUDE THE EFFECTS OF NON-GRAY RADIATION AND FINITE RATE CHEMICAL KINETICS IN COMBUSTION MODELLING. THE PROPOSAL DESCRIBES NOVEL AND HIGHLY PARALLEL TECHNIQUES FOR THIS PURPOSE. THE DISCRETE TRANSFER MODEL IS USED FOR NON-GRAY RADIATION. FOR STIFF KINETICS, A POINT-WISE SOLUTION TECHNIQUE USING STIFF SOLVERS FOR ORDINARY DIFFERENTIAL EQUATIONS IS PROPOSED. THE PHASE I PROGRAM CONSISTS OF EVALUATING THESE TECHNIQUES WITHIN THE FRAMEWORK OF OUR COMMERCIAL CODE FLUENT; VERIFICATION PROBLEMS FROM THE LITERATURE WILL BE USED TO ESTABLISH THE CORRECTNESS OF RESULTS OBTAINED. IF THE INITIAL IMPLEMENTATION PROVES FEASIBLE, THE PHASE II PLAN IS TO EXTEND THE IMPLEMENTATION TO NON-ORTHOGONAL GRIDSIN OUR CODE FLUENT/BFC. AT CULMINATION, THE PROPOSED WORK WILL DEVELOP FOR NASA A COMPREHENSIVE TOOL FOR THE MODELLINGOF TURBULENT, REACTING SUBSONIC FLOW AND HEAT TRANSFER IN COMPLEX COMBUSTOR GEOMETRIES.

* information listed above is at the time of submission.

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