Sphere drag coefficient for

FIG. 6-57 Drag coefficients for spheres, disks, and cylinders =area of particle projected on a plane normal to direction of motion C = over-... 

Figure 11-2 Drag coefficient for spheres, cylinders, and disks. (From Perry, 1984.) o Eq. (11-5), spheres. Eq. (11-7), cylinders.

Fig. 10.5 Effect of Gn, Re, and Pr on drag coefficient for spheres whose temperatures differ from the fluid temperature.

Cj drag coefficient for sphere subject to secondary motion drag coefficient for... 

FIG. 6-57 Drag coefficients for spheres, disks, and cylinders A = area of particle projected on a plane normal to direction of motion C = overall drag coefficient, dimensionless Dp - diameter of particle Fd = drag or resistance to motion of body in fluid Re = Reynolds number, dimensionless u = relative velocity between particle and main body of fluid (I = fluid viscosity and p = fluid density. (From Lapple and Shepherd, Ind. Eng. Chem., 32, 60S [1940].)... 

Figure 1.4. Drag coefficient for spheres as a function of Ret (from Schlichting, 1979).

Table 4.3 gives computed values for CD for various values of Re based on these different equations, compared to actual measurements of drag coefficients for spheres. 

The literature in the field of fluid mechanics [8] provides us with an expression as the definition of the fiictional drag coefficient For spheres, disks, cylinders, and similar bodies, the diameter is... 

Figure 13.3-2 Modified plot of drag coefficient for spheres (from Zenz and Othmer [10].

Figure 5.2 Drag coefficient for spheres in power-law liquids (see Chhabra [1990] for original sources of data)...

In 1970, Uhlherr and Sinclair (see Brucato et al, 1998) found an increase of the drag coefficient for spheres as a result of free-stream turbulence, at least at higher values of the turbulence intensity T = u /v in which stands for the root mean square of the turbulent fluctuations in the fluid s axial velocity. Uhlherr and Sinclair considered the pressure difference between nose and wake as well as the position of the boundary layer separation which shifts toward the back of the particle due to the free-stream turbulence. Their correlations are given by... 

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