Oscillatory pipe flows of a yield-stress fluid

NCUIR > College of Earth Sciences > Graduate Institute of Hydrological and Oceanic Sciences > journal & Dissertation > Item 987654321/50488

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/50488

Title:	Oscillatory pipe flows of a yield-stress fluid
Authors:	Park,YS;Liu,PLF
Contributors:	水文與海洋科學研究所
Keywords:	WATER-WAVES;SOLITARY WAVE;LONG WAVES;MUD;BED;ATTENUATION;MANAGEMENT;ESTUARIES;MODEL;LAKES
Date:	2010
Issue Date:	2012-03-27 17:33:18 (UTC+8)
Publisher:	國立中央大學
Abstract:	Oscillatory pipe flows of aqueous Carbopol solutions are investigated both experimentally and analytically. Using the PIV technique, the velocity profiles are measured and compared with the numerical solutions based on an elasto-viscoplastic rheological model, in which an elastic spring is serially connected to a regularized Bingham viscoplastic model. The rheological parameters, such as shear modulus of elasticity, yield stress and viscosity, are estimated from steady-shear measurements. Good agreement between the experiments and the model results is observed. It is apparent that the elasticity plays an important role in the unsteady flows of the soft yield-stress fluid studied herein.
Relation:	JOURNAL OF FLUID MECHANICS
Appears in Collections:	[Graduate Institute of Hydrological and Oceanic Sciences] journal & Dissertation

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