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LES Software for the Design of Low Emission Combustion Systems for Vision 21 Plants, Quarterly Report: July - September 2004

Description: Work in this quarter focused on the continued running of two SIMVAL cases: {phi} (equivalence ratio) of (1) 0.55 and (2) 0.625. Comparisons were made between RANS and LES predictions for the {phi} of 0.625 case. The LES calculation showed a different flow pattern in the combustor compared to the RANS calculation, in particular the combustor recirculation flow pattern on the centerline is dramatically different. To demonstrate that the LES solution is accurate (and the RANS is not), non-reacting… more
Date: October 2004
Creator: Meredith, Karl V. & Smith, Clifford E.
Partner: UNT Libraries Government Documents Department
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LES Software for the Design of Low Emission Combustion Systems for Vision 21 Plants, Quarterly Report: October - December 2004

Description: Vision 21 combustion systems will require innovative low emission designs and low development costs if Vision 21 goals are to be realized. In this three-year project, an advanced computational software tool will be developed for the design of low emission combustion systems required for Vision 21 clean energy plants. The combustion Large Eddy Simulation (LES) software will be able to accurately simulate the highly transient nature of gaseous-fueled turbulent combustion so that innovative concep… more
Date: April 2005
Creator: Smith, Clifford E.
Partner: UNT Libraries Government Documents Department
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LES Software for the Design of Low Emission Combustion Systems for Vision 21 Plants, Quarterly Report: April - June 2004

Description: Three SIMVAL LES calculations were completed this quarter: {phi} (equivalence ratio) of (1) 0.55, (2) 0.625, and (3) 0.7. The predictions were first analyzed, and then compared to existing experimental data of pressure dynamics, NO{sub x}, and CO emissions. It appears that the combustor flowfield changes for the {phi} of 0.55 case (compared to the other two cases), and this flowfield change results in a slight reduction in the pressure dynamics compared to the {phi} of 0.625 case. The predicted… more
Date: July 2004
Creator: Meredith, Karl V. & Smith, Clifford E.
Partner: UNT Libraries Government Documents Department
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LES Software for the Design of Low Emission Combustion Systems for Vision 21 Plants, Quarterly Report: January - March 2003

Description: Application and testing of the new combustion Large Eddy Simulation (LES) code for the design of advanced gaseous combustion systems is described in this 10th quarterly report. CFD Research Corporation has developed the LES module within the parallel, unstructured solver included in the commercial CFD-ACE+ software. In this quarter, validation and testing of the combustion LES code was performed for the DOE-Simval combustor. Also, Beta testing by consortium members was performed for various bur… more
Date: April 2003
Creator: Cannon, Steven & Smith, Clifford
Partner: UNT Libraries Government Documents Department
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LES Software for the Design of Low Emission Combustion Systems for Vision 21 Plants, Quarterly Report: July - September 2001

Description: Further development of a combustion Large Eddy Simulation (LES) code for the design of advanced gaseous combustion systems is described in this fourth quarterly report. CFD Research Corporation (CFDRC) is developing the LES module within the parallel, unstructured solver included in the commercial CFD-ACE+ software. In this quarter, in-situ adaptive tabulation (ISAT) for efficient chemical rate storage and retrieval was further tested in the LES code. A more efficient PK binary tree data struct… more
Date: October 2001
Creator: Cannon, Steve; Adumitroaie, Virgil; McDaniel, Keith & Smith, Cliff
Partner: UNT Libraries Government Documents Department
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