Drag coefficient, single particl

Fig. 14. Drag coefficient for terminal settling velocity correlation (single particle) where A represents Stokes law B, intermediate law and C, Newton s...

Energy dissipation rate per unit mass of fluid (ranges 570 < Ns < 1420) fluid and sphere, m/s. Cq,. = drag coefficient for single particle fixed in fluid at velocity i>,.. See 5-27-G for calculation details and other applica- ... 

In Volume 2, the drag coefficient C D(= Cp/2) is used in the calculation of the behaviour of single particles. However, C0 is used in this Chapter to facilitate comparison with the results of other workers in the field of Hydraulic Transport. 

In the limit of very high voidage, the drag coefficient can be related to the single particle drag coefficient. For the case of spherical particles,... 

The drag force on a single particle falling through a fluid is a function of a dimensionless drag coefficient, CD, the projected area of the particle and the inertia of the fluid.6 For a sphere ... 

Co, drag coefficient for single between particle and fluid. 

Cdo = single particle drag coefficient at culated from Cdo = Ns. A Usuper cal- m... 

APPENDIX 4.2. CORRELATIONS FOR DRAG COEFFICIENT A4.2.1. Drag Coefficient for Single Particle... 

Morsi and Alexander s (MA) correlation represents the single-particle drag curve accurately. Ma and Ahmadi s correlation predicts values comparable with the MA correlation. Molerus correlation deviates from the MA correlation at higher Reynolds numbers. Patel s correlation is found to give a better fit with the MA correlation than Richardson s correlation. Dalla Ville s correlation overpredicts values of drag coefficient compared to the MA correlation. 

The CSF and CSS based versions of the VOF method have been used to calculate improved estimates of the single particle drag and lift coefficients and for simulating breakage and coalescence of dispersed flows containing a few fluid particles [49, 218, 50, 141, 18]. 

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