Reflection of Pulse Waves and Resonance
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Дата
2002
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Анотація
The problem of axisymmetric wave flow of a viscous incompressible fluid in a system
consisting of a long thin deformable tube and a terminal element that determines the conditions of wave
reflection at the tube end is analyzed. An expression for the input admittance of the system is obtained
and the dependence of the admittance on the system parameters is investigated. The resonant frequencies
at which the admittance amplitude has extrema are found and it is shown that at these frequencies the
admittance variations with variation of the terminal-element parameters are maximal. The dependence
of the resonant frequency on the tube length is investigated. Possible applications of the results obtained
to the hydromechanical interpretation of a novel method of pulse diagnostics are discussed.
Опис
Ключові слова
waves in elastic tubes, pulse diagnostics, input admittance, spectral analysis
Бібліографічний опис
Fluid Dynamics, Vol. 38, No. 5