A compact inflow control device for simulating flight fan noise | Zendy

L. HOMYAK | Zendy; Jack G. McArdle | Zendy; Laurence J. Heidelberg | Zendy

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A compact inflow control device for simulating flight fan noise

Author(s) -

L. HOMYAK,

Jack G. McArdle,

Laurence J. Heidelberg

Publication year - 1983

Publication title -

nasa sti repository (national aeronautics and space administration)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.1983-680

Subject(s) - inflow , acoustics , noise (video) , noise control , attenuation , engineering , noise reduction , computer science , physics , optics , meteorology , artificial intelligence , image (mathematics)

Inflow control device (ICD's) of various shapes and sizes have been used to simulate inflight fan tone noise during ground static tests. A small, simple inexpensive ICD design was optimized from previous design and fabrication techniques. This compact two-fan-diameter ICD exhibits satisfactory acoustic performance characteristics without causing noise attenuation or redirection. In addition, it generates no important new noise sources. Design and construction details of the compact ICD are discussed and acoustic performance test results are presented.

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