Date of Award

12-1992

Document Type

Thesis

Degree Name

Master of Science

Department

Department of Aeronautics and Astronautics

First Advisor

Paul I. King, PhD

Abstract

This study investigates magnus effects on a non-firmed missile model which had three axially rotating sections that span at different rates. Five spin cases are examined; the mid section spinning only; the front and rear sections spinning only; all section spinning at the same speed; all sections spinning in the same direction with the mid section spinning at an additional ten revolutions per second; and all sections spinning with the mid sections spinning the opposite direction at an additional ten revolutions per second. These five cases are tested at three different spin rates for two different wind tunnel velocities. Since no research on differential spinning was found, potential flow theory of a single spinning cylinder is expanded to the differential spinning cases. Test results show that the measured Magnus forces and moments are much smaller than the potential flow predictions though most were in the predicted direction. Results also show that normal and axial forces are not affected by spin which agrees with Potential flow theory.

AFIT Designator

AFIT-GAE-ENY-92D-01

DTIC Accession Number

ADA258812

Comments

The author's Vita page is omitted.

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