Accession Number:

ADA046868

Title:

Nonlinear Analysis of the Rolling Motion of a Wrap-Around Fin Missile at Angles of Attack from 0 to 90 deg in Incompressible Flow

Descriptive Note:

Final rept. Mar 1975-Mar 1977

Corporate Author:

NAVAL SURFACE WEAPONS CENTER DAHLGREN LAB VA

Personal Author(s):

Report Date:

1977-09-01

Pagination or Media Count:

92.0

Abstract:

Dynamic subsonic wind tunnel test data are presented for a wrap- around fin WAF missile configuration in pure rolling motion at angles of attack from 0 through 90 deg. A nonlinear second-order differential equation of motion which describes the rolling motion of the four-finned WAF missile is discussed. This equation of motion is utilized in a global nonlinear least- squares fitting procedure to extract linear and nonlinear aerodynamic roll moment coefficients from the wind tunnel test data. The equation of motion together with four extracted coefficients are shown to adequately explain the subsonic rolling motion of a WAF missile configuration at angles of attack from 0 through 90 deg.

Subject Categories:

  • Rockets
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE