Accession Number:

AD0716345

Title:

On Flight Dynamics of Magnus Rotors

Descriptive Note:

Technical rept.

Corporate Author:

FORT DETRICK FREDERICK MD

Personal Author(s):

Report Date:

1970-11-01

Pagination or Media Count:

274.0

Abstract:

A Magnus rotor is an autorotating flight vehicle, designed to develop a Magnus force efficiently and to employ it as the major lift force in free flight. The equations of motion of Magnus rotors are derived and their performance and stability analyzed and correlated with free flight tests. Necessary and sufficient conditions for limit cycles are derived, and it is shown how limit cycles can be avoided by proper design of the Magnus rotor. Thirty models were flight tested. Their trajectories and attitude motions are correlated with computer simulations whose aerodynamic input data are solely based on wind tunnel tests. The agreement is satisfactory. Two different Magnus shapes were tested for limit cycles. The test results agree well with predictions.

Subject Categories:

  • Aerodynamics
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE