Oscillatory pipe flows of a yield-stress fluid

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题名:	Oscillatory pipe flows of a yield-stress fluid
作者:	Park,YS;Liu,PLF
贡献者:	水文與海洋科學研究所
关键词:	WATER-WAVES;SOLITARY WAVE;LONG WAVES;MUD;BED;ATTENUATION;MANAGEMENT;ESTUARIES;MODEL;LAKES
日期:	2010
上传时间:	2012-03-27 17:33:18 (UTC+8)
出版者:	國立中央大學
摘要:	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.
關聯:	JOURNAL OF FLUID MECHANICS
显示于类别:	[水文與海洋科學研究所] 期刊論文

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