Among different grades of synthesized PAMs, PAM-[V.sub.3] exhibited highest

settling velocity.

Equation 3 indicates the

settling velocity (V) of a droplet with a density of [[rho].sub.w] and a radius of r, settling down in a bulk fuel with a viscosity of [mu] and a density of [[rho].sub.f], where g is the acceleration due to gravity.

After a juvenile drops off the fish host, the location where it comes to rest on the streambed should be determined by a combination of

settling velocity of the juvenile, current velocity (Fig.

The

settling velocity of sediment particles is one of the key variables in the study of sediment transport and is important in understanding suspension, deposition, mixing, and exchange processes.

in which ya is the thickness of the sheet-flow layer, Ca is the concentration at ya which equals the bed-load concentration, z*=[omega]/[kappa]u* is the suspension index, and [omega] is the particle

settling velocity. The similar expression of PDFM also can be created by the method below based on the Schmidt diffusion equation (Schmidt, 1925).

In the laminar flow regime, where Reynolds number [7] is approximately less than 0.1, the

settling velocity can be expressed by Stoke's law [8] in liquid Al during grain refinement that can be applied for the estimation of settling rate of metal droplets in the liquid slag [9].

To quantitatively study the particle motion, the time evolution of the vertical position (Y) and the

settling velocity ([U.sub.y]) is shown in Figure 9 for Re = 10, 80, 100, and 200.

When the

settling velocity [omega] increases from 0.01 to 0.04 (Figure 2), the concentration profiles of different models exhibit more nonuniform distribution features.

[V.sub.s] is the

settling velocity (cm [s.sup.-1]);

After entrainment, the movement of pollen within large airflow patterns is generally considered in terms of the terminal

settling velocity of pollen grains (which depends on the density and the size of pollen grains) and on ambient meteorological conditions.

Droplet nuclei smaller than 5 [micro]m exhibit a

settling velocity below 1 m/h in still air, and can therefore follow the person's exhalation flows and the ambient air flows.

The change in

settling velocity of inertial particles in cellular flow was studied by Chan and Fung [13].