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A modified experimental system for measurement of Magnus loads

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Abstract

A modified and improved system for the measurement of Magnus loads on spinning models, at various spin rates and at various angles of attack is presented. The objective of the modifications was to increase the measuring-system sensitivity to the Magnus loads, while increasing its stiffness relative to the other loads. The spin mechanism was designed to minimize interference with the outer flow. The system was designed to operate in conjunction with any standard balance (of the appropriate diameter), so that it could be used at all wind-tunnel speeds, from low subsonic to supersonic. The versatility of the new system was demonstrated in successful measurements at various Mach numbers. Test Mach numbers varied from M = 0.025 to M = 0.4, with spin rates from zero to 30,000 rpm, and angles of attack from α = 0° to α = 90°. The test results show that Magnus loads can be measured accurately, both at low and high angles of attack and spin rates.

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Abbreviations

C y :

side force coefficient

C y/sin2α:

Magnus force coefficient

D :

body diameter

f :

spin rate (dimensional)

L :

model length

M :

Mach number

P :

nondimensional spin rate \(P = \frac{{\pi f D}}{{V sin \alpha }}\)

Re :

Reynolds number based on body diameter Re = ϱVD/μ

Re cf :

cross flow Reynolds number Re cf = Re sin α

rpm:

revolutions per minute

V :

free stream velocity

X cp :

center of pressure location, measured from the nose

α:

angle of attack

References

  • Fletcher, C. A. J. 1969: Investigation of the Magnus characteristics of a spinning inclined ogive-cylinder body at M = 0.2. WRE Tech. Note HSH-159. Weapons Res. Establ., Salisbury, South Australia

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  • Fletcher, C. A. J. 1971: The Magnus characteristics of a spinning inclined ogive cylinder body at subcritical Reynolds numbers in incompressible flow. WRE Rep. 423. Weapons Res. Establ., Salisbury, South Australia

    Google Scholar 

  • Nicolaides, J. D. 1957: On the rolling motion of missiles. BuOrd-BTN-33

  • Rosenwasser, I. 1977: Magnus forces on axisymmetric fin stabilized rolling bodies. Haifa: M.Sc. thesis. Technion, I.I.T.

  • Rosenwasser, I.; Seginer, A. 1981: The measurement of Magnus forces on spinning models. Collection of papers of the 23rd Israel Annual Conference on Aviation and Astronautics, Haifa, Israel, pp. 81–88

  • Seginer, A.; Ringel, M. 1983: Magnus effects at high angles of attack and critical Reynolds numbers. AIAA paper 83-2145

  • Vaughn, H. R. 1968: A detailed development of the tricyclic theory, SC-M-67-2933. Sandia Labs, Albuquerque, N.M.

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Authors and Affiliations

  1. Aerodynamic Laboratory, Department of Aeronautical Engineering, Technion I.I.T., Haifa, Israel

    M. Ringel, D. Levin & A. Seginer

Authors
  1. M. Ringel
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  2. D. Levin
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  3. A. Seginer
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Ringel, M., Levin, D. & Seginer, A. A modified experimental system for measurement of Magnus loads. Experiments in Fluids 3, 209–214 (1985). https://doi.org/10.1007/BF00265103

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  • DOI: https://doi.org/10.1007/BF00265103

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