Settling Velocities of Particulate Systems

Effect of ventilation air velocities on diesel particulate matter dispersion in underground coal mines

This paper presents a detailed account of computational fluid dynamics (CFD) simulations undertaken to investigate the influence of intake (ventilation) air velocities on the flow patterns of diesel particulate matter (DPM) generated by a man-riding vehicle operating in a straight rectangular cross section tunnel in an underground coal mine. The simulation results are validated against an earli...

Flow Scales of Influence on the Settling Velocities of Particles with Varying Characteristics

The settling velocities of natural, synthetic, and industrial particles were measured in a grid turbulence facility using optical measurement techniques. Particle image velocimetry and 2D particle tracking were used to measure the instantaneous velocities of the flow and the particles' trajectories simultaneously. We find that for particles examined in this study (Rep = 0.4-123), settling veloc...

Seasonal Changes in Settling Particulate Matter on the Eastern Turkish Coast of the Black Sea

Total mass flux (TMF), total organic matter (TOM), carbonate (CaCO3), lithogenic matter, biogenic silica (BSi), organic carbon (Corg), organic nitrogen (Norg) fluxes and sedimentation rates were determined seasonally using a sediment trap deployed in oxic layer on eastern coast of the Black Sea from July 2002 to October 2003. TOM, CaCO3, Corg and Norg percentages in surface sediment and chlorop...

particulate drug delivery systems in dermal applications

Inventory control of particulate systems

In this paper inventory control is applied to a particulate system. The performance of inventory control is guaranteed only if the zero dynamics of the closed loop system is stable. Mathematical analysis for the stability of the particulate system is derived to show that the zero dynamics is stable. The approach is illustrated by the application to thermal deposition of silicon in a fluid bed r...