On Laminar Rich Premixed Polydisperse Spray Flame Propagation with Heat Loss
A mathematical analysis of laminar premixed spray flame propagation with heat loss is presented. The analysis makes use of a distributed approximation of the Arrhenius exponential term in the reaction rate expression and leads to an implicit expression for the laminar burning velocity dependent on t...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Journal of Combustion |
| Online Access: | http://dx.doi.org/10.1155/2016/1069873 |
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| _version_ | 1849397925477613568 |
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| author | G. Kats J. B. Greenberg |
| author_facet | G. Kats J. B. Greenberg |
| author_sort | G. Kats |
| collection | DOAJ |
| description | A mathematical analysis of laminar premixed spray flame propagation with heat loss is presented. The analysis makes use of a distributed approximation of the Arrhenius exponential term in the reaction rate expression and leads to an implicit expression for the laminar burning velocity dependent on the spray-related parameters for the fuel, gas-related parameters and the intensity of the heat losses. It is shown that the initial droplet load, the value of the evaporation coefficient, and the initial size distribution are the spray-related parameters which exert an influence on the onset of extinction. The combination of these parameters governs the manner in which the spray heat loss is distributed spatially and it is this feature that is the main factor, when taken together with volumetric heat loss, which determines the spray’s impact on flame propagation and extinction. |
| format | Article |
| id | doaj-art-a7c805b47b1b4c5cb9196c0c85a1e7c4 |
| institution | Kabale University |
| issn | 2090-1968 2090-1976 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Combustion |
| spelling | doaj-art-a7c805b47b1b4c5cb9196c0c85a1e7c42025-08-20T03:38:48ZengWileyJournal of Combustion2090-19682090-19762016-01-01201610.1155/2016/10698731069873On Laminar Rich Premixed Polydisperse Spray Flame Propagation with Heat LossG. Kats0J. B. Greenberg1Faculty of Aerospace Engineering, Technion-Israel Institute of Technology, 32000 Haifa, IsraelFaculty of Aerospace Engineering, Technion-Israel Institute of Technology, 32000 Haifa, IsraelA mathematical analysis of laminar premixed spray flame propagation with heat loss is presented. The analysis makes use of a distributed approximation of the Arrhenius exponential term in the reaction rate expression and leads to an implicit expression for the laminar burning velocity dependent on the spray-related parameters for the fuel, gas-related parameters and the intensity of the heat losses. It is shown that the initial droplet load, the value of the evaporation coefficient, and the initial size distribution are the spray-related parameters which exert an influence on the onset of extinction. The combination of these parameters governs the manner in which the spray heat loss is distributed spatially and it is this feature that is the main factor, when taken together with volumetric heat loss, which determines the spray’s impact on flame propagation and extinction.http://dx.doi.org/10.1155/2016/1069873 |
| spellingShingle | G. Kats J. B. Greenberg On Laminar Rich Premixed Polydisperse Spray Flame Propagation with Heat Loss Journal of Combustion |
| title | On Laminar Rich Premixed Polydisperse Spray Flame Propagation with Heat Loss |
| title_full | On Laminar Rich Premixed Polydisperse Spray Flame Propagation with Heat Loss |
| title_fullStr | On Laminar Rich Premixed Polydisperse Spray Flame Propagation with Heat Loss |
| title_full_unstemmed | On Laminar Rich Premixed Polydisperse Spray Flame Propagation with Heat Loss |
| title_short | On Laminar Rich Premixed Polydisperse Spray Flame Propagation with Heat Loss |
| title_sort | on laminar rich premixed polydisperse spray flame propagation with heat loss |
| url | http://dx.doi.org/10.1155/2016/1069873 |
| work_keys_str_mv | AT gkats onlaminarrichpremixedpolydispersesprayflamepropagationwithheatloss AT jbgreenberg onlaminarrichpremixedpolydispersesprayflamepropagationwithheatloss |