Experimental study of effect of stenosis geometry on flow parameters
CTU in Prague, Faculty of Mechanical Engineering, Department of Fluid Dynamics and Thermodynamics, 16607, Prague 6, Czech Republic
a Corresponding author: O.Vesely@fs.cvut.cz
Published online: 6 May 2015
A stenosis is a narrowing in a tubular organ or structure. In medicine, vessel stenosis poses health risks for people. In this work, experimental investigations of pressure loss coefficient for varying stenosis eccentricity and shape were performed. Five models of different geometry were studied; all models were stenosis of 75 % area reduction. The flow conditions approximate physiological flow. The measuring range of Reynolds number was from 130 to 2730, measured values of pressure loss coefficient were from 12 to 20. The steady experimental results indicated that static pressure loss coefficient is affected by the shape of stenosis, but it was affected more significantly by the eccentricity. Visualization experiments have been performed in Polycarbonate models.
© Owned by the authors, published by EDP Sciences, 2015
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