Lattice Boltzmann modeling for multiphase viscoplastic fluid flow

doi:10.1016/j.jnnfm.2016.05.003

CORC > 北京大学 > 工学院

	Lattice Boltzmann modeling for multiphase viscoplastic fluid flow
	Xie, Chiyu ; Zhang, Jianying ; Bertola, Volfango ; Wang, Moran
刊名	JOURNAL OF NON-NEWTONIAN FLUID MECHANICS
	2016
关键词	Viscoplastic fluid Multiphase flow Herschel-Bulkley model Lattice Boltzmann method YIELD-STRESS FLUID INCOMPRESSIBLE 2-PHASE FLOWS NON-NEWTONIAN FLUIDS NONUNIFORM SYSTEM FREE-ENERGY CORONARY-ARTERY FREE-BOUNDARIES BINGHAM FLUID DENSITY RATIO POROUS-MEDIA
DOI	10.1016/j.jnnfm.2016.05.003
英文摘要	We present a lattice Boltzmann model to simulate multiphase viscoplastic fluid flow. It is an extended model based on the free-energy-based lattice Boltzmann method (LBM) for multiphase fluids with possible high-density and high-viscosity ratios by applying the Herschel-Bulkley constitutive relationship to account for the variable viscosity. The model shows good agreements between the simulation results and the corresponding theoretical solutions for different cases. Furthermore, the capability and effectivity of this model is tested by examples, including droplet(s) falling and interaction in Bingham fluid, and sessile viscoplastic droplet motion. The results illustrate that our model is able to catch the yield behavior well, and to distinguish various kinds of viscoplastic fluids effectively. (C) 2016 Elsevier B.V. All rights reserved.; NSF grant of China [51176089, U1562217]; National Science and Technology Major Project on Oil and Gas [2016ZX05013001]; PetroChina Innovation Foundation [2015D-5006-0201]; Tsinghua University Initiative Scientific Research Program [2014z22074]; SCI(E); EI; ARTICLE; mrwang@tsinghua.edu.cn; 118-128; 234
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437078]
专题	工学院
推荐引用方式 GB/T 7714	Xie, Chiyu,Zhang, Jianying,Bertola, Volfango,et al. Lattice Boltzmann modeling for multiphase viscoplastic fluid flow[J]. JOURNAL OF NON-NEWTONIAN FLUID MECHANICS,2016.
APA	Xie, Chiyu,Zhang, Jianying,Bertola, Volfango,&Wang, Moran.(2016).Lattice Boltzmann modeling for multiphase viscoplastic fluid flow.JOURNAL OF NON-NEWTONIAN FLUID MECHANICS.
MLA	Xie, Chiyu,et al."Lattice Boltzmann modeling for multiphase viscoplastic fluid flow".JOURNAL OF NON-NEWTONIAN FLUID MECHANICS (2016).