Measurement Of Pitch-Damping Derivatives On Prithvi Model In The Nal 1.2m Tunnel

Nagarajan, V and Sundaramurthy, H (1990) Measurement Of Pitch-Damping Derivatives On Prithvi Model In The Nal 1.2m Tunnel. Technical Report. NAL, Bangalore.

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Abstract

Pitch Damping Derivatives Were Measured On A 1/12 .5 Scale Prithvi Model Using The Forced Oscillation Technique In The NAL 1 .2m Tunnel. The Tests Were Made In The Mach Number Range Of 1 .5 To 3 .0 And At Angles Of Attack 0, 3 And 6 Deg . The Tests Were Conducted For Two Axes Of Oscillation Located At 3 .8 And 4 .05 Times The Body Diameter From The Nose. While A Majority Of The Tests Were Conducted On The 'Plus' Configuration, A Few Tests Were Also Conducted On The Into Configuration To Study The Effect Of Roll Orientation Of The Model . Both Configurations Exhibited Positive Damping Over The Range Of Test Parameters. Effects Of Angle Of Attack And Model Roll Orientation Were Found To Be Small .

Item Type: Monograph (Technical Report)
Uncontrolled Keywords: Dynamic Stability; Stability Derivatives; Forced-oscillation
Subjects: AERONAUTICS > Aeronautics (General)
Depositing User: M/S ICAST NAL
Date Deposited: 21 Sep 2012 05:39
Last Modified: 21 Sep 2012 05:39
URI: http://nal-ir.nal.res.in/id/eprint/10971

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