We present a computational investigation of the mechanism governing size-based particle separation in microfluidic pinched flow fractionation. We study the behavior of particles moving through a pinching gap (i.e., a constriction in the aperture of a channel) in the Stokes regime (negligible fluid and particle inertia) as a function of particle size. The constriction aperture is created by a pl...

We present the Cosmological Double Radio Active Galactic Nuclei (CosmoDRAGoN) project: a large suite of simulated AGN jets in cosmological environments. These environments sample intra-cluster media galaxy clusters that form smooth particle hydrodynamics (SPH) simulations, which we then use as inputs for grid-based hydrodynamic simulations radio jets. Initially conical are injected with range j...

We present a new algorithm for radiative transfer-based on statistical Monte Carlo approach-that does not suffer from teleportation effects, the one hand, and yields smooth results, other hand. Implicit (IMC) techniques modeling transfer have existed 1970s. When they are used optically thick problems, however, basic suffers "teleportation" errors, where photons propagate faster than exact physi...

The problem of expansion of a dilute granular gas consisting of smooth, inelastic hard spheres into vacuum was investigated by three different methods: both (1) analytical and (2) computational (CFD) treatments of a hydrodynamic model, and (3) by Discrete Element Method (DEM) simulation. Furthermore, the systems were followed for long times, over which the granular kinetic energy decreases by s...

We present a numerical method that consistently implements thermal fluctuations and hydrodynamic interactions to the motion of Brownian particles dispersed in incompressible host fluids. In this method, the thermal fluctuations are introduced as random forces acting on the Brownian particles. The hydrodynamic interactions are introduced by directly resolving the fluid motions with the particle ...

The present study examines the motion of a slender body in the presence of a plane fluid-fluid interface with an arbitrary viscosity ratio. The fluids are assumed to be at rest at infinity, and the particle is assumed to have an arbitrary orientation relative to the interface. The method of analysis is slender-body theory for Stokes flow using the fundamental solutions for singularities (i.e. S...

The hydrodynamic behaviour of riming frozen drops and riming simulated ice crystal plates was studied by meansofavertical wind tunnel.At all times theiceparticles werefreelysuspended in thevertical airstream of the wind tunnel where temperature and liquid water content could be accurately controlled. The ice particles studied had initial radii between 100 and 300,um and final radii between 400 ...

In this paper, a generalized particle system (GPS) method, a general method to describe multiple strong form representation based particle methods is described. Gradient, divergence, and Laplacian operators used in various strong form based particle method such as moving particle semi-implicit (MPS) method, smooth particle hydrodynamics (SPH), and peridynamics, can be described by the GPS metho...

PLGA (poly d,l-lactic-co-glycolic acid) nanoparticles (NPs) encapsulating magnetite nanoparticles (MNPs) along with a model drug human serum albumin (HSA) were prepared by double emulsion solvent evaporation method. This Part I will focus on size and size distribution of prepared NPs, whereas encapsulation efficiency will be discussed in Part II. It was found that mean hydrodynamic particle siz...