Direct computation of sound radiation by jet flow using large-scale equations | Zendy

Reda R. Mankbadi | Zendy; S.-H. Shih | Zendy; Ray Hixon | Zendy; Louis A. Povinelli | Zendy

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Direct computation of sound radiation by jet flow using large-scale equations

Author(s) -

Reda R. Mankbadi,

S.-H. Shih,

Ray Hixon,

Louis A. Povinelli

Publication year - 1995

Publication title -

33rd aerospace sciences meeting and exhibit

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.1995-680

Subject(s) - computation , jet (fluid) , scale (ratio) , sound (geography) , acoustics , flow (mathematics) , radiation , mechanics , computer science , physics , optics , algorithm , quantum mechanics

Jet noise is directly predicted using large-scale equations. The computational domain is extended in order to directly capture the radiated field. As in conventional large-eddy-simulations, the effect of the unresolved scales on the resolved ones is accounted for. Special attention is given to boundary treatment to avoid spurious modes that can render the computed fluctuations totally unacceptable. Results are presented for a supersonic jet at Mach number 2.1.

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