DYNAMICS OF LIQUID-FILLED SHELL: RESONANCE AND EFFECT OF VISCOSITY
- 1 May 1965
- report
- Published by Defense Technical Information Center (DTIC)
Abstract
Experiments have been conducted with liquid filled shell in free flight and with a liquid filled gyroscope. The cavities in each were designed to have a principal fluid frequency which was equal to the nutational frequency of the respective systems. Comparisons of experimental results with predictions of the inviscid theory of Stewartson showed significant Reynolds number effects. Both the rate of divergence of the nutational amplitude at resonance and the width of the resonance band are Reynolds number dependent. Also, there is a small shift or resonance frequency with Reynolds number. The experiments suggests, however, that in the limit, for large Reynolds numbers of the order of 10 to the 6th power, the inviscid theory gives excellent predictions.Keywords
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