A Study of the Flow Field Surrounding Interacting Line Fires
The interaction of converging fires often leads to significant changes in fire behavior, including increased flame length, angle, and intensity. In this paper, the fluid mechanics of two adjacent line fires are studied both theoretically and experimentally. A simple potential flow model is used to e...
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| Main Authors: | , , |
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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/10.1155/2016/6927482 |
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| _version_ | 1832563189467840512 |
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| author | Trevor Maynard Marko Princevac David R. Weise |
| author_facet | Trevor Maynard Marko Princevac David R. Weise |
| author_sort | Trevor Maynard |
| collection | DOAJ |
| description | The interaction of converging fires often leads to significant changes in fire behavior, including increased flame length, angle, and intensity. In this paper, the fluid mechanics of two adjacent line fires are studied both theoretically and experimentally. A simple potential flow model is used to explain the tilting of interacting flames towards each other, which results from a momentum imbalance triggered by fire geometry. The model was validated by measuring the velocity field surrounding stationary alcohol pool fires. The flow field was seeded with high-contrast colored smoke, and the motion of smoke structures was analyzed using a cross-correlation optical flow technique. The measured velocities and flame angles are found to compare reasonably with the predicted values, and an analogy between merging fires and wind-blown flames is proposed. |
| format | Article |
| id | doaj-art-f27569a55b804f31a5fef121a4d160b4 |
| 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-f27569a55b804f31a5fef121a4d160b42025-02-03T01:20:46ZengWileyJournal of Combustion2090-19682090-19762016-01-01201610.1155/2016/69274826927482A Study of the Flow Field Surrounding Interacting Line FiresTrevor Maynard0Marko Princevac1David R. Weise2Bureau of Alcohol, Tobacco, Firearms and Explosives, Fire Research Laboratory, Beltsville, MD 20705, USADepartment of Mechanical Engineering, Bourns College of Engineering, University of California, Riverside, Riverside, CA 92521, USAUSDA Forest Service, Pacific Southwest Research Station, Forest Fire Laboratory, Riverside, CA 92507, USAThe interaction of converging fires often leads to significant changes in fire behavior, including increased flame length, angle, and intensity. In this paper, the fluid mechanics of two adjacent line fires are studied both theoretically and experimentally. A simple potential flow model is used to explain the tilting of interacting flames towards each other, which results from a momentum imbalance triggered by fire geometry. The model was validated by measuring the velocity field surrounding stationary alcohol pool fires. The flow field was seeded with high-contrast colored smoke, and the motion of smoke structures was analyzed using a cross-correlation optical flow technique. The measured velocities and flame angles are found to compare reasonably with the predicted values, and an analogy between merging fires and wind-blown flames is proposed.http://dx.doi.org/10.1155/2016/6927482 |
| spellingShingle | Trevor Maynard Marko Princevac David R. Weise A Study of the Flow Field Surrounding Interacting Line Fires Journal of Combustion |
| title | A Study of the Flow Field Surrounding Interacting Line Fires |
| title_full | A Study of the Flow Field Surrounding Interacting Line Fires |
| title_fullStr | A Study of the Flow Field Surrounding Interacting Line Fires |
| title_full_unstemmed | A Study of the Flow Field Surrounding Interacting Line Fires |
| title_short | A Study of the Flow Field Surrounding Interacting Line Fires |
| title_sort | study of the flow field surrounding interacting line fires |
| url | http://dx.doi.org/10.1155/2016/6927482 |
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