A High Angle Of Attack Aerodynamic Prediction Code For Cruciform Missile Configurations.

Venugopal, S and Krishnamurthy, M (1992) A High Angle Of Attack Aerodynamic Prediction Code For Cruciform Missile Configurations. Technical Report. NAL, Bangalore.

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Abstract

This Technical Report Covers The Work Carried Out Under A Memorandum Of Understanding Between NAL And DRDL To-Develop A Missile Prediction Code For Estimation Of Aerodynamic Characteristics At High Angles DF Attack, High Mach Number Range, Arbitrary Control Deflections And Non-Zero Roll Orientations . The Computer Code Has Been Developed Based On The Equivalent Angle Of Attack Technique .This Technique Combines Semi-Empirical Nethods, Theoretical Methods And Correlated Data Bases . The Code Can Predict The Normal Force, Side Force, Pitching Moment,Yawing Moment And Rolling Noment Coefficients Of Missile Configuration Upto High Angles Of Attack Ipto 30°), Mach Numbers From 0 .8 To 5 .0, Arbitrary Control Deflections (±25°) And Non-Zero. Roll Angles (0 R * Ts 90°) . It Also Accounts For Various Nose Ieometries And Vortices Interaction On Fins . The Fins Are Limited To Low Aspect Ratio (4-4 .0, Typical Of Fins Used In Conventional Missiles) With Zero)R.Small Trailing Edge Sweep Angles.The Computer Code Has Been Validated over A Wide Range Of Missile Configurations And Flow Parameters. The Overall cabilities Of The Code Have Also Been Compared With Nine Other Missile aeroprediction Codes. These Studies Indicate The Capability And Dependability )of The Code In The Preliminary Design Of Missile Configurations.

Item Type: Monograph (Technical Report)
Uncontrolled Keywords: Missile; Equivalent Angle Of Attack ; High Angle Of Attack; Cruciform Configuration; Aerodynamic Prediction
Subjects: ASTRONAUTICS > Astronautics (General)
Depositing User: Users 90 not found.
Date Deposited: 07 Aug 2012 07:49
Last Modified: 07 Aug 2012 07:49
URI: http://nal-ir.nal.res.in/id/eprint/10736

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