Large eddy simulation of spray dispersion and mixing in a swirl stabilized gas turbine burner
(2007) 45th AIAA Aerospace Sciences Meeting 2007 16. p.11214-11226- Abstract
- The dispersion of droplets and mixing of evaporated gases in a swirl stabilized gas turbine combustor are studied with an Eulerian / Lagrangian approach. The results are shown to be highly sensitive to the assumed droplet injection diameter. Injection of smaller droplet diameters lead to significantly higher local equivalence ratios and temperature drops, and increased gas phase densities, enhancing further the breakup of the droplets non-linearly. A spiraling rotational mode in the combustor, the precessing vortex core, leads to time-dependent local mixture fractions with bi-modal probability density functions. Small droplets and evaporated gases can enter the swirl generator intermittently with a frequency related to this rotational mode.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/643419
- author
- Salewski, Mirko LU ; Duwig, Christophe LU ; Milosavljevic, Vladimir LU and Fuchs, Laszlo LU
- organization
- publishing date
- 2007
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Phase density, Spray dispersion, Temperature drop, Swirl generators
- host publication
- Collection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
- volume
- 16
- pages
- 11214 - 11226
- publisher
- American Institute of Aeronautics and Astronautics
- conference name
- 45th AIAA Aerospace Sciences Meeting 2007
- conference location
- Reno, NV, United States
- conference dates
- 2007-01-08 - 2007-01-11
- external identifiers
-
- scopus:34347258856
- language
- English
- LU publication?
- yes
- id
- b1271130-fcbe-4d45-8656-e31c603083db (old id 643419)
- alternative location
- http://pdf.aiaa.org/preview/CDReadyMASM07_1064/PV2007_924.pdf
- date added to LUP
- 2016-04-04 11:26:55
- date last changed
- 2022-01-29 21:53:16
@inproceedings{b1271130-fcbe-4d45-8656-e31c603083db, abstract = {{The dispersion of droplets and mixing of evaporated gases in a swirl stabilized gas turbine combustor are studied with an Eulerian / Lagrangian approach. The results are shown to be highly sensitive to the assumed droplet injection diameter. Injection of smaller droplet diameters lead to significantly higher local equivalence ratios and temperature drops, and increased gas phase densities, enhancing further the breakup of the droplets non-linearly. A spiraling rotational mode in the combustor, the precessing vortex core, leads to time-dependent local mixture fractions with bi-modal probability density functions. Small droplets and evaporated gases can enter the swirl generator intermittently with a frequency related to this rotational mode.}}, author = {{Salewski, Mirko and Duwig, Christophe and Milosavljevic, Vladimir and Fuchs, Laszlo}}, booktitle = {{Collection of Technical Papers - 45th AIAA Aerospace Sciences Meeting}}, keywords = {{Phase density; Spray dispersion; Temperature drop; Swirl generators}}, language = {{eng}}, pages = {{11214--11226}}, publisher = {{American Institute of Aeronautics and Astronautics}}, title = {{Large eddy simulation of spray dispersion and mixing in a swirl stabilized gas turbine burner}}, url = {{http://pdf.aiaa.org/preview/CDReadyMASM07_1064/PV2007_924.pdf}}, volume = {{16}}, year = {{2007}}, }