The hybrid RANS/LES of partially premixed supersonic combustion using G/Z flamelet model
(2016) In Acta Astronautica 127. p.375-383- Abstract
In order to describe partially premixed supersonic combustion numerically, G/Z flamelet model is developed and compared with finite rate model in hybrid RANS/LES simulation to study the strut-injection supersonic combustion flow field designed by the German Aerospace Center. A new temperature calculation method based on time-splitting method of total energy is introduced in G/Z flamelet model. Simulation results show that temperature predictions in partially premixed zone by G/Z flamelet model are more consistent with experiment than finite rate model. It is worth mentioning that low temperature reaction zone behind the strut is well reproduced. Other quantities such as average velocity and average velocity fluctuation obtained by... (More)
In order to describe partially premixed supersonic combustion numerically, G/Z flamelet model is developed and compared with finite rate model in hybrid RANS/LES simulation to study the strut-injection supersonic combustion flow field designed by the German Aerospace Center. A new temperature calculation method based on time-splitting method of total energy is introduced in G/Z flamelet model. Simulation results show that temperature predictions in partially premixed zone by G/Z flamelet model are more consistent with experiment than finite rate model. It is worth mentioning that low temperature reaction zone behind the strut is well reproduced. Other quantities such as average velocity and average velocity fluctuation obtained by developed G/Z flamelet model are also in good agreement with experiment. Besides, simulation results by G/Z flamelet also reveal the mechanism of partially premixed supersonic combustion by the analyses of the interaction between turbulent burning velocity and flow field.
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- author
- Wu, Jinshui ; Wang, Zhenguo ; Bai, Xue-Song LU ; Sun, Mingbo and Wang, Hongbo
- organization
- publishing date
- 2016-10-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Combustion, G/Z flamelet model, Partially premixed, Supersonic
- in
- Acta Astronautica
- volume
- 127
- pages
- 9 pages
- publisher
- Elsevier
- external identifiers
-
- wos:000383525100036
- scopus:84975246832
- ISSN
- 0094-5765
- DOI
- 10.1016/j.actaastro.2016.06.021
- language
- English
- LU publication?
- yes
- id
- c22b0697-8ae1-4e87-baf8-593e1909d7f8
- date added to LUP
- 2016-10-17 09:53:37
- date last changed
- 2024-06-28 17:05:10
@article{c22b0697-8ae1-4e87-baf8-593e1909d7f8, abstract = {{<p>In order to describe partially premixed supersonic combustion numerically, G/Z flamelet model is developed and compared with finite rate model in hybrid RANS/LES simulation to study the strut-injection supersonic combustion flow field designed by the German Aerospace Center. A new temperature calculation method based on time-splitting method of total energy is introduced in G/Z flamelet model. Simulation results show that temperature predictions in partially premixed zone by G/Z flamelet model are more consistent with experiment than finite rate model. It is worth mentioning that low temperature reaction zone behind the strut is well reproduced. Other quantities such as average velocity and average velocity fluctuation obtained by developed G/Z flamelet model are also in good agreement with experiment. Besides, simulation results by G/Z flamelet also reveal the mechanism of partially premixed supersonic combustion by the analyses of the interaction between turbulent burning velocity and flow field.</p>}}, author = {{Wu, Jinshui and Wang, Zhenguo and Bai, Xue-Song and Sun, Mingbo and Wang, Hongbo}}, issn = {{0094-5765}}, keywords = {{Combustion; G/Z flamelet model; Partially premixed; Supersonic}}, language = {{eng}}, month = {{10}}, pages = {{375--383}}, publisher = {{Elsevier}}, series = {{Acta Astronautica}}, title = {{The hybrid RANS/LES of partially premixed supersonic combustion using G/Z flamelet model}}, url = {{http://dx.doi.org/10.1016/j.actaastro.2016.06.021}}, doi = {{10.1016/j.actaastro.2016.06.021}}, volume = {{127}}, year = {{2016}}, }