Flame-spread probability and local interactive effects in randomly arranged fuel-droplet arrays in microgravity
| Autor: | Hisashi Shigeno, Naoya Kojima, Hiroshi Oyagi, Masato Mikami |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Chemistry
General Chemical Engineering Flame structure Analytical chemistry General Physics and Astronomy Energy Engineering and Power Technology General Chemistry Mechanics Physics::Fluid Dynamics Fuel Technology Interactive effects Lattice (order) Flame spread Flame propagation Physics::Chemical Physics |
| Zdroj: | Combustion and Flame. 156:763-770 |
| ISSN: | 0010-2180 |
| Popis: | We investigated the flame-spread characteristics of randomly arranged fuel-droplet arrays in microgravity. Flame-spread probability was calculated based on a percolation model with the flame-spread-limit distance of evenly-spaced n-decane droplet arrays in microgravity. Flame-spread probability depends on the occupation fraction of droplets in a lattice and rapidly increases with the occupation fraction. The local flame-spread-limit distance of unevenly-spaced n-decane droplet arrays was experimentally investigated in microgravity. The droplets were arranged in a straight line at uneven intervals. The local flame-spread-limit distance of the unevenly-spaced droplet arrays depended on the droplet arrangement and increased from the flame-spread-limit distance of the evenly-spaced droplet arrays due to interactive effects. The flame-spread probability considering the increase in local flame-spread-limit distance is larger than that without it. |
| Databáze: | OpenAIRE |
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