A Rectilinear Droplet Stream in Combustion: Droplet and Gas Phase Properties
| Autor: | G. Lavergne, Y. Biscos, J. F. Virepinte, G. Collin, P. Magre |
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| Rok vydání: | 2000 |
| Předmět: |
Drag coefficient
Chemistry General Chemical Engineering Analytical chemistry General Physics and Astronomy Energy Engineering and Power Technology Reynolds number General Chemistry Large range Mechanics Combustion Measure (mathematics) Gas phase Physics::Fluid Dynamics symbols.namesake Fuel Technology symbols Droplet size |
| Zdroj: | Combustion Science and Technology. 150:143-159 |
| ISSN: | 1563-521X 0010-2202 |
| DOI: | 10.1080/00102200008952121 |
| Popis: | A basic experiment has been designed to improve the understanding of certain phenomena like droplet interaction occurring in dense sprays. The interaction effect in a stream of monosized ethanol droplets on the drag coefficient (Cd) for non evaporating and reacting conditions is investigated. Also the burning rate is studied. The spacing parameter C (ratio of interdroplet distance to droplet diameter) is the main parameter retained here to represent the interaction effects. Non intrusive optical techniques have been developed to measure, simultaneously, along the droplet path, the droplet size, velocity and mean temperature. The stream is first studied in non evaporating conditions. The data compiled for a large range of parameters (drag coefficient Cd. Reynolds number Re, spacing parameter C) permit to establish a new correlation for the drag coefficient taking into account the spacing parameter. The first experimental results are compared with those previously published. Then the stream is igni... |
| Databáze: | OpenAIRE |
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