Acoustic Duct Design For Attenuation Of Flow Unsteadiness In NAL 1 .2m Tunnel

Desikan, KS (1991) Acoustic Duct Design For Attenuation Of Flow Unsteadiness In NAL 1 .2m Tunnel. Technical Report. NAL, Bangalore.

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Abstract

Unsteady Pressure Measurements In The NAL 1.2m Trisonic Wind Tunnel Indicated That Levels Of Test Section Flow Unsteadiness Are Relatively Higher As Compared To Similar Tunnels. Such High Pressure Fluctuations Are Not Acceptable And Therefore To Be Attenuated. Acoustic Duct As An Insert To The Settling Chamber Has Been Designed And The Details Of Construction And Anticipated Performance Are Presented.

Item Type: Monograph (Technical Report)
Uncontrolled Keywords: Flow Unsteadiness; Attenuation; Multi-Pass Duct; Wind Tunnel
Subjects: AERONAUTICS > Aeronautics (General)
Depositing User: M/S ICAST NAL
Date Deposited: 03 Oct 2012 05:20
Last Modified: 03 Oct 2012 05:20
URI: http://nal-ir.nal.res.in/id/eprint/10933

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