Dynamic Wetting for Continuum Hydrodynamics with Multi-Component Lattice Boltzmann Equation Simulation Method
نویسندگان
چکیده
We present methodological innovations to the multi-component lattice Boltzmann equation simulation method which allow for the simulation of dynamic contact lines in the continuum approximation. The improvements are set-out and verified by quantitative results. They allow the simulator access to an expanded range of simulation parameters like viscosity, viscosity contrast and interfacial tensions, and to obtain data with low levels of interfacial micro-current activity in the region of the dynamic contact line.
منابع مشابه
Numerical Simulation of Fluid Flow Past a Square Cylinder Using a Lattice Boltzmann Method
The method of lattice boltzmann equation(LBE) is a kinetic-based approach for fluid flow computations. In the last decade, minimal kinetic models, and primarily the LBE, have met with significant success in the simulation of complex hydrodynamic phenomena, ranging from slow flows in grossly irregular geometries to fully developed turbulence, to flow with dynamic phase transitions. In the presen...
متن کاملThe Lattice Boltzmann Equation Method: Theoretical Interpretation, Numerics and Implications
During the last ten years the Lattice Boltzmann Equation (LBE) method has been developed as an alternative numerical approach in computational fluid dynamics (CFD). Originated from the discrete kinetic theory, the LBE method has emerged with the promise to become a superior modeling platform, both computationally and conceptually, compared to the existing arsenal of the continuum-based CFD meth...
متن کاملFluid Interfaces in Phase Transition Problems: Lattice-boltzmann Method
The Lattice-Boltzmann method has been seen as an alternative model for the computational simulation of fluid dynamics. It is based on the Boltzmann transport equation, which serves as the foundation of kinetic theory of gases. Considering its suitability for complex geometry problems, it has been widely applied for the description of fluid flow with one or more components inside porous media, e...
متن کاملThe Lattice Boltzmann Equation Method for the Simulation of Compressible Fluid Flow
We systematically derived hydrodynamic equations and transport coe cients for a class of multi-speed lattice Boltzmann models in D dimensions, using the multi-scale technique. The constitutive relation of physical uid is recovered by a modi ed equilibrium distribution in Maxwell-Boltzmann type. With the use of the rest particles and the particle reservoir, we were able to add one degree of free...
متن کاملBuoyancy Term Evolution in the Multi Relaxation Time Model of Lattice Boltzmann Method with Variable Thermal Conductivity Using a Modified Set of Boundary Conditions
During the last few years, a number of numerical boundary condition schemes have been used to study various aspects of the no-slip wall condition using the lattice Boltzmann method. In this paper, a modified boundary condition method is employed to simulate the no-slip wall condition in the presence of the body force term near the wall. These conditions are based on the idea of the bounce-back ...
متن کامل