Large-Eddy Simulations of Subsonic Impinging Jets

We consider here the subsonic impinging jet representing the flow field of a vertical take-off aircraft or the initial stage of rocket launching. Implicit Large-Eddy Simulation (ILES) is used to calculate the time-dependent flow field and the radiate sound pressure associated with jet impinging. With proper boundary treatments and high-order numerical scheme, the near field sound pressure is successfully obtained. Results are presented for both a rectangular as well a circular jet.

Authors:

• L. Nguyen
• V. Golubev
• R. Mankbadi

Keywords:

• Aeroacoustics
• Large-Eddy Simulations
• Jets
• Fluid Dynamics.

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