论文标题
多分辨率流体力学
A Coupled lattice Boltzmann-Multiparticle collision method for multi-resolution hydrodynamics
论文作者
论文摘要
在这项工作中，我们讨论了两种用于流体动力学的介镜方法的耦合，即晶格Boltzmann方法（LB）和多颗粒碰撞动力学（MPCD）\ cite {Kapral2008multiparticle}，以设计基于柔韧性和高效的多板图的新类别，以一种固定的代表来设计一个固定的表演。 At variance with other commonly used multigrid methods, mostly oriented to high Reynolds and turbulent flows, the present approach is designed to capture the physics at the smallest scales whenever the lattice Boltzmann alone falls short of providing the correct physical information due to a lack of resolution, as it occurs for example in thin films between interacting bubbles or droplets in microfluidic crystals. 详细介绍了通过LB和MPCD之间传递流体动力信息的耦合策略，并针对不同耦合配置的稳定等温poiseuille流量问题对算法进行了测试。
In this work we discuss the coupling of two mesoscopic approaches for fluid dynamics, namely the lattice Boltzmann method (LB) and the multiparticle collision dynamics (MPCD) \cite{kapral2008multiparticle} to design a new class of flexible and efficient multiscale schemes based on a dual representation of the fluid observables. At variance with other commonly used multigrid methods, mostly oriented to high Reynolds and turbulent flows, the present approach is designed to capture the physics at the smallest scales whenever the lattice Boltzmann alone falls short of providing the correct physical information due to a lack of resolution, as it occurs for example in thin films between interacting bubbles or droplets in microfluidic crystals. The coupling strategies employed to pass the hydrodynamic information between the LB and the MPCD are detailed and the algorithm is tested against the steady isothermal Poiseuille flow problem for different coupling configurations.
