Evaluation of Presumed Probability-Density-Function Models in Non-Premixed Flames by using Large Eddy Simulation

doi:10.1088/0256-307X/29/5/054705

Chin. Phys. Lett.

2012, Vol. 29

Issue (5): 054705 DOI: 10.1088/0256-307X/29/5/054705

FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS)

Evaluation of Presumed Probability-Density-Function Models in Non-Premixed Flames by using Large Eddy Simulation

CAO Hong-Jun,ZHANG Hui-Qiang^**,LIN Wen-Yi

Department of Engineering Mechanics, Tsinghua University, Beijing 100084

Cite this article:

CAO Hong-Jun, ZHANG Hui-Qiang, LIN Wen-Yi 2012 Chin. Phys. Lett. 29 054705

Download: PDF(1286KB)
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks

Abstract Four kinds of presumed probability-density-function (PDF) models for non-premixed turbulent combustion are evaluated in flames with various stoichiometric mixture fractions by using large eddy simulation (LES). The LES code is validated by the experimental data of a classical turbulent jet flame (Sandia flame D). The mean and rms temperatures obtained by the presumed PDF models are compared with the LES results. The β−function model achieves a good prediction for different flames. The predicted rms temperature by using the double-δ function model is very small and unphysical in the vicinity of the maximum mean temperature. The clip−Gaussian model and the multi-δ function model make a worse prediction of the extremely fuel-rich or fuel-lean side due to the clip at the boundary of the mixture fraction space. The results also show that the overall prediction performance of presumed PDF models is better at mediate stoichiometric mixture fractions than that at very small or very large ones.

Received: 12 March 2012 Published: 30 April 2012

PACS:	47.27.tb	(Turbulent diffusion)
	47.27.ep	(Large-eddy simulations)
	47.70.Pq	(Flames; combustion)

TRENDMD:

URL:

https://cpl.iphy.ac.cn/10.1088/0256-307X/29/5/054705 OR https://cpl.iphy.ac.cn/Y2012/V29/I5/054705

Service
	E-mail this article
	E-mail Alert
	RSS
Articles by authors
	CAO Hong-Jun
	ZHANG Hui-Qiang
	LIN Wen-Yi

[1] Hawthorne W R and Weddell D S 1949 Proc. Combust. Inst. 3 266
[2] Zhang H Q 2000 J. Combustion Sci. Technol. 6(1) 58 (In Chinese)
[3] Mungal M G and Dimotakis P E 1984 J. Fluid Mech. 148 349
[4] Karasso P S and Mungal M G 1996 J. Fluid Mech. 323 23
[5] Stanley S A and Sarkar S 2002 J. Fluid Mech. 450 377
[6] Pantano C and Sarkar S 2003 J. Fluid Mech. 481 291
[7] Dirk R and Kato S 2002 JSME Int. Ser. A 45 101
[8] http://www.sandia.gov/TNF/DataArch/FlameD.html
[9] Goldin G M 2005 AIAA 43rd Aerospace Science Meeting and Exhibition 2005-55
[10] Chorin A 1968 Math. Comput. 22 745
[11] Peters N 1985 Lecture Notes Phys. 241 90

Viewed

Full text

Abstract