Direct numerical simulation of dispersed particles in a compressible fluid

Abstract

We present a direct numerical simulation method for investigating the dynamics of dispersed particles in a compressible solvent fluid. The validity of the simulation is examined by calculating the velocity relaxation of an impulsively forced spherical particle with a known analytical solution. The simulation also gives information about the fluid motion, which provides some insight into the particle motion. Fluctuations are also introduced by random stress, and the validity of this case is examined by comparing the calculation results with the fluctuation-dissipation theorem.

7 pages, 5 figures

References in corpus (1)

• A Numerical Model for Brownian Particles Fluctuating in Incompressible Fluids

Cited by in corpus (5)

• Inertial Coupling Method for particles in an incompressible fluctuating fluid
• Bridging the gap between molecular dynamics and hydrodynamics in nanoscale Brownian motions
• A minimal model for acoustic forces on Brownian particles
• Propagation of hydrodynamic interactions between particles in a compressible fluid
• Velocity relaxation of a particle in a confined compressible fluid