Match!

Impact of Combustion Modeling on the Spectral Response of Heat Release in LES

Published on Dec 24, 2018in Combustion Science and Technology1.56
· DOI :10.1080/00102202.2018.1558218
Feichi Zhang5
Estimated H-index: 5
(KIT: Karlsruhe Institute of Technology),
Thorsten Zirwes3
Estimated H-index: 3
(KIT: Karlsruhe Institute of Technology)
+ 4 AuthorsChristian Oliver Paschereit29
Estimated H-index: 29
(Technical University of Berlin)
Cite
  • References (25)
  • Citations (0)
Cite
References25
Newest
Published on Nov 1, 2017in Journal of Fluid Mechanics3.14
Fabien Thiesset2
Estimated H-index: 2
,
Fabien Halter20
Estimated H-index: 20
+ 5 AuthorsThierry Poinsot57
Estimated H-index: 57
This study focuses on the response of premixed flames to a transient hydrodynamic perturbation in an intermediate situation between laminar stretched flames and turbulent flames: an axisymmetric vortex interacting with a flame. The reasons motivating this choice are discussed in the framework of turbulent combustion models and flame response to the stretch rate. We experimentally quantify the dependence of the flame kinematic properties (displacement and consumption speeds) to geometrical scalar...
Published on Sep 3, 2017in Combustion Theory and Modelling1.65
A. Hosseinzadeh2
Estimated H-index: 2
(Technische Universität Darmstadt),
A. Sadiki20
Estimated H-index: 20
(Technische Universität Darmstadt)
+ 1 AuthorsJ. Janicka37
Estimated H-index: 37
(Technische Universität Darmstadt)
The effects of combustion and SubGrid Scale (SGS) modelling on the overall flame characteristics of a turbulent premixed flame are investigated. This is achieved in terms of mean flow statistics, variances and flame surfaces. In particular, the chemical flame structure is analysed and compared. The Artificially Thickened Flame (ATF) approach coupled with the Flamelet Generated Manifolds (FGMs) and Filtered TAbulated Chemistry for LES (F-TACLES) approaches are used for this investigation. A Germa...
Published on Jul 1, 2017in Energy technology3.16
Feichi Zhang5
Estimated H-index: 5
(KIT: Karlsruhe Institute of Technology),
Thorsten Zirwes3
Estimated H-index: 3
(KIT: Karlsruhe Institute of Technology)
+ 3 AuthorsChristian Oliver Paschereit29
Estimated H-index: 29
(Technical University of Berlin)
A first-order estimation for the prediction of combustion-generated noise from turbulent premixed flames has been explored. The method is based on Lighthill's acoustic analogy and uses measurement data from high-speed imaging of chemiluminescent emissions as input. It has been shown by both 1D and 3D detailed numerical simulations that the local generation of OH* correlates strongly with the heat released from the chemical reaction, especially in the fuel-lean range. As the chemiluminescence mea...
Published on May 1, 2017in Combustion and Flame4.12
Son Vo3
Estimated H-index: 3
(University of Stuttgart),
O.T. Stein12
Estimated H-index: 12
(University of Stuttgart)
+ 1 AuthorsM. J. Cleary15
Estimated H-index: 15
(USYD: University of Sydney)
Abstract A sparse particle implementation of the multiple mapping conditioning / large eddy simulation (MMC-LES) model is assessed against direct numerical simulations (DNS) of non-premixed syngas combustion in the double shear layer configuration of Hawkes et al. (2007). The considered configuration features strong extinction and reignition and therefore poses a stringent test of the model’s capabilities to capture finite-rate chemistry effects. The investigation focuses on the modelling of the...
Published on Jan 1, 2017in Combustion and Flame4.12
Feichi Zhang5
Estimated H-index: 5
(KIT: Karlsruhe Institute of Technology),
Thorsten Zirwes3
Estimated H-index: 3
(KIT: Karlsruhe Institute of Technology)
+ 1 AuthorsHenning Bockhorn34
Estimated H-index: 34
(KIT: Karlsruhe Institute of Technology)
Abstract Numerical simulations employing detailed reaction kinetics and transport have been applied to calculate steady-state and harmonically excited laminar hydrogen–air flames with equivalence ratios ranging from fuel-lean to fuel-rich mixtures. The objective is to gain a basic understanding of the influence of unsteady flow stretching on the flame’s response. The flame displacement speed and consumption speed have been evaluated, together with stretch, curvature and strain. In the steady-sta...
Published on Feb 1, 2016in Combustion and Flame4.12
Ping Wang5
Estimated H-index: 5
(Jiangsu University),
Jochen Fröhlich26
Estimated H-index: 26
(TUD: Dresden University of Technology)
+ 2 AuthorsCai-jun Wang1
Estimated H-index: 1
(Jiangsu University)
Abstract A detailed comparison of the performances of a dynamically thickened-flame (DTF) model and a flame surface density (FSD) model is conducted through large eddy simulation (LES) of two fuel-lean turbulent premixed swirling flames in the well-known PRECCINSTA gas turbine model combustor. The two models are implemented in the same in-house Finite-Volume code, with the same numerical method, and all the computations are performed on the same block-structured body-fitted curvilinear grid. Ver...
Published on Nov 1, 2015in Combustion and Flame4.12
B. Fiorina1
Estimated H-index: 1
(CentraleSupélec),
R. Mercier1
Estimated H-index: 1
(CentraleSupélec)
+ 14 AuthorsChristophe Duwig8
Estimated H-index: 8
(KTH: Royal Institute of Technology)
Five different low-Mach large eddy simulations are compared to the turbulent stratified flame experiments conducted at the Technical University of Darmstadt (TUD). The simulations were contributed by TUD, the Institute for Combustion Technology (ITV) at Aachen, Lund University (LUND), the EM2C laboratory at Ecole Centrale Paris, and the University of Duisburg-Essen (UDE). Combustion is modeled by a premixed flamelet tabulation with local flame thickening (TUD), a premixed flamelet progress varia...
Published on Jan 1, 2015 in HiPC (IEEE International Conference on High Performance Computing, Data, and Analytics)
Feichi Zhang5
Estimated H-index: 5
(KIT: Karlsruhe Institute of Technology),
Henning Bonart3
Estimated H-index: 3
(KIT: Karlsruhe Institute of Technology)
+ 3 AuthorsNikolaos Zarzalis14
Estimated H-index: 14
(KIT: Karlsruhe Institute of Technology)
A new solver for direct numerical simulation (DNS) of chemically reacting flow is introduced, which is developed within the framework of the open-source program OpenFOAM. The code is capable of solving numerically the compressible reactive flow equations employing unstructured grids. Therewith a detailed description of the chemistry, e.g. the reaction rates, and transport, e.g. the diffusion coefficients, has been accomplished by coupling the free chemical kinetics program Cantera. The solver im...
Published on Jun 16, 2014
Georg Geiser4
Estimated H-index: 4
(RWTH Aachen University),
Holger Nawroth6
Estimated H-index: 6
(Technical University of Berlin)
+ 6 AuthorsWolfgang Schroeder9
Estimated H-index: 9
(RWTH Aachen University)
Quantitative analyses of noise induced by turbulent combustion processes are essential for the design of efficient combustors. To understand the noise generating mechanisms detailed thermoacoustic source mechanisms for the acoustic perturbation equations are deduced from the governing equations of compressible reactive fluids. A generic burner configuration operated with a turbulent premixed flame is experimentally and numerically investigated to identify relevant source mechanisms and to show t...
Published on Jun 1, 2014in Computers & Fluids2.22
Emj Komen2
Estimated H-index: 2
(Nuclear Research and Consultancy Group),
Afaque Shams10
Estimated H-index: 10
(Nuclear Research and Consultancy Group)
+ 1 AuthorsBarry Koren20
Estimated H-index: 20
(TU/e: Eindhoven University of Technology)
Abstract Experimental limitations for certain nuclear reactor safety applications have pushed forward the demand for high fidelity DNS reference solutions for complex geometric configurations such as a T-junction or a spherical pebble bed. The application of traditional high-order DNS codes is limited to simple flow domains such as a periodic box or channel. As a possibility to create reference DNS solutions for more complex geometries, we have assessed the (quasi-)DNS capabilities of the OpenFO...
Cited By0
Newest