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Feichi Zhang
Karlsruhe Institute of Technology
CombustionLarge eddy simulationPremixed flameTurbulenceCombustor
40Publications
7H-index
100Citations
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Publications 45
Newest
#1Thorsten Zirwes (KIT: Karlsruhe Institute of Technology)H-Index: 3
#2Feichi Zhang (KIT: Karlsruhe Institute of Technology)H-Index: 7
Last. Dimosthenis Trimis (KIT: Karlsruhe Institute of Technology)H-Index: 22
view all 7 authors...
A quasi-DNS of the partially premixed turbulent Sydney flame in configuration FJ200-5GP-Lr75-57 has been conducted using detailed molecular diffusion for multi-component mixtures and complex reaction mechanisms. In order to study flame dynamics like regime transition in this flame for the development of new combustion models and to directly compare the quasi-DNS to different LES models, the simulation results are compiled into a data base. Because the simulation was performed with OpenFOAM, we d...
Source
#1Thorsten ZirwesH-Index: 3
#2Feichi ZhangH-Index: 7
Last. Dimosthenis TrimisH-Index: 22
view all 5 authors...
Source
#1Feichi Zhang (KIT: Karlsruhe Institute of Technology)H-Index: 7
#2Thorsten Zirwes (KIT: Karlsruhe Institute of Technology)H-Index: 3
Last. Dimosthenis Trimis (KIT: Karlsruhe Institute of Technology)H-Index: 22
view all 6 authors...
ABSTRACTThis work presents a numerical study of the initial turbulent flow characteristics prior to ignition in a fan-stirred combustion vessel. The moving mesh methodology has been applied to acco...
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#1Feichi Zhang (KIT: Karlsruhe Institute of Technology)H-Index: 7
#2Thorsten Zirwes (KIT: Karlsruhe Institute of Technology)H-Index: 3
Last. Christian Oliver Paschereit (Technical University of Berlin)H-Index: 33
view all 7 authors...
ABSTRACTThis work assesses the effect of using different closure concepts for the spatially filtered mean reaction rate on the resolved spectral response of turbulent heat release in large eddy sim...
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#1Konrad Pausch (RWTH Aachen University)H-Index: 2
#2Sohel Sebastian Herff (RWTH Aachen University)H-Index: 1
Last. Wolfgang Schröder (RWTH Aachen University)H-Index: 36
view all 5 authors...
The thermoacoustic sound generation mechanisms of lean premixed laminar and turbulent flames are investigated by a two-step approach. First, the conservation equations of a reacting compressible fluid are solved. This solution is used to determine the acoustic source terms of the acoustic perturbation equations (APE). Second, the contributions of the different source terms to the amplitude and phase of the acoustic pressure signal are analyzed by solving the APE in a computational aeroacoustics ...
Source
#1Thorsten Zirwes (KIT: Karlsruhe Institute of Technology)H-Index: 3
#2Feichi Zhang (KIT: Karlsruhe Institute of Technology)H-Index: 7
Last. Henning Bockhorn (KIT: Karlsruhe Institute of Technology)H-Index: 35
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ABSTRACTDetailed numerical simulations have been performed to study the ignition behavior of hot spherical particles at atmospheric conditions. The particles move relative to a combustible gas with a velocity of 0–30 m s −1, which spans different flow regimes, from creeping flow to unsteady vortex shedding. The temperature of the particles’ surface increases linearly over time and is recorded at ignition (Tsurf,ign) for methane/air and hydrogen/air mixtures. For low relative velocities v<5 m s −...
1 CitationsSource
#1Thorsten ZirwesH-Index: 3
#2Feichi ZhangH-Index: 7
Last. Dimosthenis TrimisH-Index: 22
view all 5 authors...
#1Feichi ZhangH-Index: 7
Last. Henning BockhornH-Index: 35
view all 9 authors...
#1Thorsten ZirwesH-Index: 3
#2Feichi ZhangH-Index: 7
Last. Dimosthenis TrimisH-Index: 22
view all 5 authors...
#1Thorsten ZirwesH-Index: 3
#2Thomas HäberH-Index: 3
Last. Johannes JanickaH-Index: 37
view all 8 authors...
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