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Implementation of LES/SFMDF for Prediction of Non-premixed Turbulent Flames

Drozda, Tomasz Grzegorz (2006) Implementation of LES/SFMDF for Prediction of Non-premixed Turbulent Flames. Doctoral Dissertation, University of Pittsburgh. (Unpublished)

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Large eddy simulation (LES) is conducted of two experimental flame configurations. The first is the flame studied in the experiments of the Combustion Research Facility at the Sandia National Laboratories (SNL) and the Technische Universitat Darmstadt (TUD), namely Flame D. This is a turbulent piloted non-premixed methane jet flame. The second flame is also studied by the Combustion Research Facility at the Sandia National Laboratories and at the Thermal Research Group at the University of Sydney. This is a turbulent bluff-body stabilized hydrogen-methane jet flame. The subgrid scale (SGS) closure in LES is based on the scalar filtered mass density function (SFMDF) methodology. The SFMDF is the mass weighted probability density function (PDF) of the SGS scalar quantities. A flamelet model is used to relate the scalar composition to the mixture fraction. The modeled SFMDF transport equation is solved by a hybrid finite-difference (FD) / Monte Carlo (MC) scheme. This is the first LES of realistic turbulent flames using the transported PDF method as the SGS closure. The results viathis method capture some of the important features of the flames as observed experimentally.


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Item Type: University of Pittsburgh ETD
Status: Unpublished
CreatorsEmailPitt UsernameORCID
Drozda, Tomasz Grzegorztgd4@pitt.eduTGD4
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee ChairGivi, Peymangivi@engr.pitt.eduPEG10
Committee MemberGaldi, Giovanni Pgaldi@engr.pitt.eduGALDI
Committee MemberSchaefer, Laura Alaschaef@engr.pitt.eduLAS149
Committee MemberLayton, William Jwjl@pitt.eduWJL
Date: 1 February 2006
Date Type: Completion
Defense Date: 25 August 2005
Approval Date: 1 February 2006
Submission Date: 26 August 2005
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Institution: University of Pittsburgh
Schools and Programs: Swanson School of Engineering > Mechanical Engineering
Degree: PhD - Doctor of Philosophy
Thesis Type: Doctoral Dissertation
Refereed: Yes
Uncontrolled Keywords: diffusion flame; FDF; LES; PDF; turbulent reacting flows
Other ID:, etd-08262005-115041
Date Deposited: 10 Nov 2011 20:01
Last Modified: 15 Nov 2016 13:49


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