Numerical Prediction of NO* Emission from a Model Civil Aircraft Engine Combustor
CFD simulation and chemical reactor network (CRN) analysis of NOr emissions from a model civil aircraft engine combustor are addressed in this paper. The CFD approach is the Reynolds Averaged resolution of Navier-Stokes (RANS) equations of reactive two-phase flow. The implicit compressible solver of gas phase and the Lagrangian tracking method of liquid phase are performed. Turbulence-Combustion interaction is modeled by the extended coherent flamelet model coupled with detailed kerosene-air burning chemical mechanism exclude NOx formation. The NOx emission formation is modeled by the basic Extended Zeldovich mechanism in the post-processing steps of CFD with the hypothesis of frozen temperature. For the efficient low emission civil aircraft engine combustor preliminary design, the CRN approach is extracted from the analysis of CFD results. Simple procedure to split the reactive combustor field into several zones consider as perfectly stirred reactors (PSR) is proposed in this paper. The comparisons of CFD, CRN and experimental test data show that CRN methodology could be much more efficient estimating NOr formation in terms of magnitudes and trends while with a reduced CPU requirements cost.
ZHANG Man FU Zhen-bo LIN Yu-zhen
AVIC Commercial Aircraft Engine Co. ,Ltd, 2F,Building 3, NO. 555 Dongchuan Road, Shanghai, China National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics,School of Jet P
国际会议
4th International Symposium on Jet Propulsion and Power Engineering(第四届喷气推进与动力工程国际会议 ISJPPE2012)
西安
英文
417-424
2012-09-10（万方平台首次上网日期，不代表论文的发表时间）