Assessment of subgrid interpolation for the source term evaluation within premixed combustion simulations
Assessment of subgrid interpolation for the source term evaluation within premixed combustion simulations
复制标题
预混燃烧模拟中源项评估的子网格插值评估
DOI:
10.1016/j.combustflame.2016.12.016
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发表时间:
2017
影响因子:
4.4
通讯作者:
Janicka
中科院分区:
文献类型:
--
作者:
Kuenne;Avdić;Janicka
In order to reduce the error within the numerical evaluation of the chemical source term, spatial interpolation based on the discrete cell centered scalar quantities is applied. By that, their subgrid evolution is approximated which serves for a more accurate evaluation of the source terms dependency on transported scalars whose non-linearity is the major cause of errors. A detailed analysis is performed to assess this approach within the context of premixed combustion simulations. Besides an a priori analysis, simulations of one-dimensional flame propagation as well as two-dimensional flame–vortex-interactions are used to quantify the gain with respect to the computed flame speed and the corresponding accuracy of the predicted flame dynamics. For the application within realistic applications it is demonstrated how the method can be combined with the artificially thickened flame model for large eddy simulations. This includes the theoretical derivation, simple testcases for a detailed verification and assessment, and finally the simulations of a turbulent swirl burner, where also the computational efficiency is addressed.
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影响因子:
4.4
作者:
T. Poinsot;D. Veynante;S. Candel
通讯作者:
S. Candel
DOI:
10.1016/s1540-7489(02)80243-7
发表时间:
2002
期刊:
J. Comput. Phys.
影响因子:
--
作者:
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F. Biagioli
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F. Biagioli
DOI:
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1997
期刊:
影响因子:
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作者:
J. Grandy
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J. Grandy
影响因子:
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作者:
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