Preliminary Soot Computations Based on a Model Aircraft Combustor With OpenNCCIn a preliminary effort to extend our current capabilities used in the design & testing of aero-engine combustors to particulate emissions, we incorporated several existing 2- equation soot models into the Open National Combustion Code (OpenNCC). The paper presents results from a validation study based on a well-characterized, swirl-stabilized, turbulent sooting flame generated by a model aero-engine combustor developed at DLR, Germany. The calculations are based on a Reynolds-Averaged Navier Stokes (RANS) simulation with standard k-e turbulence model & a finite-rate chemical kinetic mechanism. A separate transport equation is solved for all individual species involved in ethylene/air combustion. The predicted velocity and temperature are mostly in good agreement with the measured data and reasonable agreement was found for soot. While the calculated SVF (Soot Volume Fraction) behavior is similar to some other predicted results reported in literature, the measured soot lasts farther downstream than the calculated soot indicating a need for further improvement in the soot models employed.
Document ID
20190031871
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Raju, Manthena (Vantage Partners, LLC Brook Park, OH, United States)
Moder, Jeffrey P. (NASA Glenn Research Center Cleveland, OH, United States)
Wey, Changju T. (NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
September 30, 2019
Publication Date
September 22, 2019
Subject Category
Aircraft Design, Testing And PerformanceAvionics And Aircraft Instrumentation