String flash-boiling in gasoline direct injection simulations with transient needle motion
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- 作者：E.T. Baldwin ; a ; ebaldwin@engin.umass.edu" class="auth_mail" title="E-mail the corresponding author ; ebaldwin@umass.edu" class="auth_mail" title="E-mail the corresponding author ; R.O. Grover Jr.b ; S.E. Parrishb ; D.J. Dukec ; K.E. Matusikc ; C.F. Powellc ; A.L. Kastengrend ; D.P. Schmidta
- 关键词：Gasoline direct injection ; Flash-boiling ; Diffuse interface ; CFD ; Openfoam®
- 刊名：International Journal of Multiphase Flow
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：87
- 期：Complete
- 页码：90-101
- 全文大小：4133 K
文摘
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A CFD study of multiphase GDI internal flow and near-field spray is described.
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Excellent agreement to experimental ROI is achieved with transient needle motion.
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Qualitative agreement to experimental imaging in the near-field is shown.
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Complex internal nozzle flow is shown to influence ROI and spray angle.
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Unsteady vortices cause string flash-boiling and expansion of the near-field spray.