Theses and Dissertations from UMD

Permanent URI for this communityhttp://hdl.handle.net/1903/2

New submissions to the thesis/dissertation collections are added automatically as they are received from the Graduate School. Currently, the Graduate School deposits all theses and dissertations from a given semester after the official graduation date. This means that there may be up to a 4 month delay in the appearance of a give thesis/dissertation in DRUM

More information is available at Theses and Dissertations at University of Maryland Libraries.

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Author: search.filters.author.Ren, NingSubject: search.filters.subject.Break-up

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    Analysis of the initial spray from canonical fire suppression nozzles
    (2007-08-10) Ren, Ning; Marshall, André W; Fire Protection Engineering; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    The performance of a fire suppression spray is governed by injector discharge characteristics. An atomization model based on the theoretical evolution of a radially expanding sheet generated by an impinging jet has been established in this study. The atomization model predicts characteristic initial drop location, size, and velocity based on injector operating conditions and geometry. These model predictions have been compared with measured discharge characteristics from three nozzle configurations of increasing geometrical complexity over a range of operating conditions. Differences between the predicted and measured initial spray are critically evaluated based on the experimentally observed atomization behavior.