Numerical Simulation of Flow Field inside the Liquid-Liquid Pressure Swirl Injector

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Janmohammadi, Mahsa | 2015

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 47398 (45)
University: Sharif University of Technology
Department: Aerospace Engineering
Advisor(s): Farshchi, Mohammad
Abstract:
Numerical simulation of flow fields inside and outside of a pressure-swirl injector is considered in the present study. Injector characteristics such as the injected liquid sheet thickness, liquid sheet breakup length, and spray angle can be accurately captured via numerical simulations and used for the design optimization of an injector. The flow fields inside of a pressure-swirl injector leading to the primary atomization process outside the injector have been simulated assuming laminar flow with periodic boundary conditions using a coupled volume of fluid (VOF) and a level set model for the two phase fluid. The ANSYS Fluent commercial program is used for simulations. The computational results have been compared with available experimental data and shown reasonable consistency and accuracy
Keywords:
Pressure-Swirl Injectors ; Spray Angle ; Breakup Length ; Liquid Film Thickness

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