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Author Çarpınlıoğlu, Melda Özdinç ♦ Oruç, Vedat
Source SpringerLink
Content type Text
Publisher Springer-Verlag
File Format PDF
Copyright Year ©2010
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations
Subject Keyword Collapse onset ♦ Flow rate limitation ♦ Transmural pressure ♦ Circumferential bending stiffness ♦ Non-dimensional pressure parameter ♦ Engineering ♦ Science
Abstract An experimental study conducted for the determination of the onset of collapse of an elastic tube of a Starling resistor conveying air is presented herein. The collapse was induced under the action of external pressure p $_{e}$ applied to the tube walls. The influence of length L, thickness h, and modulus of elasticity E of the tube on collapse were determined by using a variety of silicone rubber and latex-Penrose tubes. The experiments were conducted under the presence of constant upstream head with the absence of a longitudinal strain of the tube in a range of flow Reynolds number (Re) 16750 < Re < 70280. At each air flow rate Q through the tube, p $_{e}$ was increased gradually. The inlet and exit pressures of the tubes p $_{1}$ and p $_{2}$ were measured. The variation of Q with p $_{e}$ was used to determine the onset of collapse. The magnitude of p $_{e}$ at the onset of collapse was defined as p $_{e,c}$. The visually observed collapse was associated with a flow rate reduction, followed by so-called oscillating and non-oscillating cases. The experimental data at the onset of collapse were expressed in terms of a correlation between Re (h/L) and a non-dimensional pressure parameter defined as (p $_{e,c}$ − p $_{2}$)/K $_{p}$ including circumferential bending stiffness of the tube K $_{p}$.
ISSN 13198025
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2011-01-15
Publisher Place Berlin, Heidelberg
e-ISSN 21914281
Journal Arabian Journal for Science and Engineering
Volume Number 36
Issue Number 2
Page Count 10
Starting Page 329
Ending Page 338

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Source: SpringerLink