Chebyshev pseudospectral method of viscous flows with corner singularities
Journal of Scientific Computing
Domain decomposition: parallel multilevel methods for elliptic partial differential equations
Domain decomposition: parallel multilevel methods for elliptic partial differential equations
Hybrid atomistic-continuum formulations and the moving contact-line problem
Journal of Computational Physics
Statistical error in particle simulations of hydrodynamic phenomena
Journal of Computational Physics
Simulations of reactive transport and precipitation with smoothed particle hydrodynamics
Journal of Computational Physics
Velocity limit in DPD simulations of wall-bounded flows
Journal of Computational Physics
Multiscale Simulation of Nanobiological Flows
Computing in Science and Engineering
Hybrid atomistic-continuum method for the simulation of dense fluid flows
Journal of Computational Physics
Time-dependent and outflow boundary conditions for Dissipative Particle Dynamics
Journal of Computational Physics
A new computational paradigm in multiscale simulations: application to brain blood flow
Proceedings of 2011 International Conference for High Performance Computing, Networking, Storage and Analysis
Parallel multiscale simulations of a brain aneurysm
Journal of Computational Physics
Hi-index | 31.46 |
Multiscale flow phenomena in microfluidic and biomedical applications require the use of heterogeneous modeling approaches. In this paper we present a hybrid method based on coupling the Molecular Dynamics (MD) method, the Dissipative Particle Dynamics (DPD) method, and the incompressible Navier-Stokes (NS) equations. MD, DPD, and NS are formulated in separate subdomains and are coupled via an overlapping region by communicating state information at the subdomain boundaries. Imposition of boundary conditions in the MD and DPD systems involves particle insertion and deletion, specular wall reflection and body force terms. The latter includes a boundary pressure force in order to minimize near-boundary density fluctuations, and an adaptive shear force which enforces the tangential velocity component of boundary conditions. The triple-decker algorithm is verified for prototype flows, including simple and multi-layer fluids (Couette, Poiseuille, and lid-driven cavity), using highly accurate reference solutions. A zero-thickness interface is also possible if it is aligned with the flow streamlines.