Identification of relaxation parameter of a small latex tube

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F12%3A00199452" target="_blank" >RIV/68407700:21220/12:00199452 - isvavai.cz</a>
Result on the web
<a href="http://epilepsy.biomed.cas.cz/hb2012/HB2012_files/HB2012_abstracts.pdf" target="_blank" >http://epilepsy.biomed.cas.cz/hb2012/HB2012_files/HB2012_abstracts.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Identification of relaxation parameter of a small latex tube
Original language description
This paper presents a fluid transient inflation experiment with a viscoelastic latex tube and its numerical simulation. Mathematical description of experimental setup (inflated tube, piping and pressurized vessel) is based on the windkessel model and ona nonlinear viscoelastic constitutive model of the inflated tube. The viscoelastic model is derived from the principle of maximized dissipated energy. Resulting system of ordinary differential equations is solved numerically by implicit Euler method. A thin wall latex tube of a small diameter (5mm) was tested first by a static inflation giving purely elastic part of the constitutive viscoelastic model. The following transient experiment (recording frequency and attenuation of pressure oscillations) enables to identify a relaxation parameter of the suggested viscoelastic model. Attenuation of the recorded pressure oscillation is caused by the tested sample viscoelasticity but also by fluid friction. To asses the influence of the (undesir
Czech name
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Czech description
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Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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