Numerical Study of Spray Formation in Slinger Injection

Karimi, Hamed | 2014

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 46237 (45)
  4. University: Sharif University of Technology
  5. Department: Aerospace Engineering
  6. Advisor(s): Farshchi, Mohammad
  7. Abstract:
  8. In this M.S. dissertation numerical study of slinger fuel distributer has been studied. This type of atomizer has been used in mini turbojets like Teledyne CAE.
    The main purpose of this work was obtaining spray structure of slinger atomizers. This goal was achieved by implementing a UDF code in FLUENT® software to model the primary atomization that include variation of fluid from exit of slinger disk bores till formation of primary droplet. In FLUENT® the DPM method and its ability to utilizing Lagrangian approaches have been used. The result of this model is validated by the data from experimental test that can be found in Articles. This is the first time that spray structure of slinger distributer has been modeled numerically (like the other atomizer model, like pressure-swirl and plain-orifice atomizer).
    In this M.S. dissertation in addition to investigation of spray structure, the inner flow of slinger injector has been studied. First, fuel flow inside of fuel pipe that attaches to the slinger disk has been investigated. Then flow in slinger disk has been simulated. To validate the results in every of three major parts of this dissertation (flow inside fuel pipe, flow inside slinger disk and spray structure outside of injector) some examples that have similar physical characteristics to main problem have been simulated.
  9. Keywords:
  10. Slinger Injector ; Rotary Distributer ; Discrete Phase Model ; J 4.2 Engine ; Liquid Jet in Cross Flow (LJCF)Spray Structure

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