An integrated lattice Boltzmann and finite volume method for the simulation of viscoelastic fluid flows

作者：Zou, Shun^*; Yuan, Xue Feng; Yang, Xuejun; Yi, Wei; Xu, Xinhai

来源：Journal of Non-Newtonian Fluid Mechanics, 2014, 211: 99-113.

DOI：10.1016/j.jnnfm.2014.07.003

• Integrated scheme
• Lattice Boltzmann method
• Finite volume method
• Viscoelastic fluid flows

A novel integrated scheme for modeling incompressible polymer viscoelastic fluid flows is proposed. Lattice Boltzmann method (LBM) is incorporated into finite volume method (FVM) to solve the incompressible Navier-Stokes equations and the constitutive equation respectively, and is implemented using open source CFD toolkits to predict nonlinear dynamics of polymer viscoelastic fluid flows. The hybrid numerical scheme inherits the efficiency and scalability of LBM and maintains the accuracy and generality of FVM. It has been critically validated using the Oldroyd-B model and linear PTT model under Poiseuille flow, Taylor-Green vortex flow and 4: 1 abrupt planar contraction flow, respectively. The results from the integrated scheme have good agreement with the analytical solutions and the numerical results of other FVM schemes in previous publications.

• 出版日期2014-9
• 单位中国人民解放军国防科学技术大学