Thomas Wey

Taitech, Inc., Beavercreek, Ohio

Nan-Suey Liu

Glenn Research Center, Cleveland, Ohio

Current Status of Post-Combustor Trace

Chemistry Modeling and Simulation at

NASA Glenn Research Center

NASA/TM—2003-212184

March 2003
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Thomas Wey

Taitech, Inc., Beavercreek, Ohio

Nan-Suey Liu

Glenn Research Center, Cleveland, Ohio

Current Status of Post-Combustor Trace

Chemistry Modeling and Simulation at

NASA Glenn Research Center

NASA/TM—2003-212184

March 2003

National Aeronautics and

Space Administration

Glenn Research Center
Acknowledgments

Version 3.1 (May 1999) of the GLENN-HT, from which we extended into CGLENN-HT, are provided to us by

Dr. James Heidmann of the Turbine Branch. His help is deeply appreciated.

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National Technical Information Service

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paper, intended to solicit comments and

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Current Status of Post-Combustor Trace Chemistry Modeling and Simulation at

NASA Glenn Research Center

Thomas Wey and Nan-Suey Liu

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Thomas Wey, Taitech, Inc., Beavercreek, Ohio 45430; and Nan-Suey Liu, NASA Glenn Research Center.

Responsible person, Thomas Wey, organization code 5830, 216–433–2934.

 The overall objective of the current effort at NASA GRC is to evaluate, develop, and apply methodologies suitable for

modeling intra-engine trace chemical changes over post combustor flow path relevant to the pollutant emissions from

aircraft engines. At the present time, the focus is the high pressure turbine environment. At first, the trace chemistry

model of CNEWT were implemented into GLENN-HT as well as NCC. Then, CNEWT, CGLENN-HT, and NCC were

applied to the trace species evolution in a cascade of Cambridge University's No. 2 rotor and in a turbine vane passage.

In general, the results from these different codes provide similar features. However, the details of some of the quantities

of interest can be sensitive to the differences of these codes. This report summaries the implementation effort and

presents the comparison of the No. 2 rotor results obtained from these different codes. The comparison of the turbine

vane passage results is reported elsewhere. In addition to the implementation of trace chemistry model into existing CFD

codes, several pre/post-processing tools that can handle the manipulations of the geometry, the unstructured and structured grids as well as the CFD solutions also have been enhanced and seamlessly tied with NCC, CGLENN-HT, and

CNEWT. Thus, a complete CFD package consisting of pre/post-processing tools and flow solvers suitable for postcombustor intra-engine trace chemistry study is assembled.