Sommario
Si considera la propagazione di onde di pressione in tubi distensibili riempiti di fluido. Dal confronto delle registrazioni sperimentali con le soluzioni teoriche si propone una semplice relazione di dispersione che contiene un singolo parametro indeterminato avente le dimensioni di un tempo. Si mostra come interpretare tale parametro e come stimare il suo valore. Si conclude con alcune considerazioni sulla velocità di propagazione delle onde di pressione nell'ambito emodinamico.
Summary
By comparing experimental records with model solutions we are led to propose a dispersion relation governing the propagation of pressure pulses in fluid filled distensible tubes. This relation contains a single undetermined parameter having the dimension of time. We show how this parameter may be interpreted and obtain an estimate of its value. Some comments concerning the speed of propagation of pressure waves in the haemodynamics contest are made.
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This work has been realized within a bilateral project supported by the Italian Research Council (CNR) and the Natural Scinces and Engineering Research Council of Canada (NSERC).
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Moodie, T.B., Mainardi, F. & Tait, R.J. Pressure pulses in fluid filled distensible tubes. Meccanica 20, 33–37 (1985). https://doi.org/10.1007/BF02337059
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DOI: https://doi.org/10.1007/BF02337059