Experimental Investigation on Interaction of Three Converging Jets

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Kazemi, Sajad | 2018

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 50924 (45)
University: Sharif University of Technology
Department: Aerospace Engineering
Advisor(s): Kebriaee, Azadeh
Abstract:
In this thesis the instability regimes of the liquid sheet resulted from interactions of three converging jets is investigated. To this end, the shadowgraphy method is used. All the experiments have been done under the atmospheric pressure by using water as the jet fluid. The injectors are orifice ones.In our study, the effects of changing the jet velocities and changing the three jets’ structure (planar and non-planar) in having different liquid sheet shapes are investigated.Although so many researches have been done on interactions of two converging jets until now, there is almost not any researches about interactions of three converging jets. Considering this, this thesis topic is novel, and the present study can be a nice beginning to advance the understanding of this subject.As has been said, the experiments have been done in two different structures of three converging jets, first in planar structure and then in non-planar one. This can be considered as one of the thesis inovations. In addition, the characteristics of three converging jets’ liquid sheet and its breakup phenomenon have been investigated in different Reynolds and Weber numbers
Keywords:
Impinging Jet ; Spray ; Shadowgraphy Method ; Jet Interactions

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