Numerical simulation of a single fluid particle rising in non-Newtonian fluids

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	Numerical simulation of a single fluid particle rising in non-Newtonian fluids
	Zhang L(张丽); Zhang L(张丽); Zhang L(张丽); Zhang L(张丽)
	2009-12-28
会议名称	中国力学学会学术大会’2009 (CCTAM2009)
会议日期	2009-08-24~2009-08-26
通讯作者邮箱	chaoyang@home.ipe.ac.cn
会议地点	郑州
通讯作者	杨超
中文摘要	In this work, a level set method is developed for simulating the motion of a fluid particle rising in non-Newtonian fluids described by generalized Newtonian as well as viscoelastic model fluids. As the shear-thinning model we use a Carreau-Yasuda model, and the viscoelastic effect can be modeled with Oldroyd-B constitutive equations. The control volume formulation with the SIMPLEC algorithm incorporated is used to solve the governing equations on a staggered Eulerian grid. The level set method is implemented to compute the motion of a bubble in a Newtonian fluid as one of typical examples for validation, and the computational results are in good agreement with the reported experimental data．The level set method is also applied for simulating a Newtonian drop rising in Carreau-Yasuda and Oldroyd-B fluids．Numerical results including noticeably negative wake behind the drop and viscosity field are obtained, and compare satisfactorily with the known literature data.
收录类别	其他
合作状况	其它
会议录	中国力学学会学术大会’2009 (CCTAM2009).郑州.2009-08-24~2009-08-26.
学科主题	流体力学
语种	中文
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/32986]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Zhang L,Zhang L,Zhang L,et al. Numerical simulation of a single fluid particle rising in non-Newtonian fluids[C]. 见:中国力学学会学术大会’2009 (CCTAM2009). 郑州. 2009-08-24~2009-08-26.