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The drag coefficients of liquid droplets accelerating through air

✍ Scribed by J.L. Buzzard; R.M. Nedderman

Publisher
Elsevier Science
Year
1967
Tongue
English
Weight
822 KB
Volume
22
Category
Article
ISSN
0009-2509

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✦ Synopsis

The drag coefficients of falling droplets of various liquids are presented as functions of the Reynolds number based on the properties of the external fluid. It is found that the drag coefficients are independent of the Reynolds number in the range 1000 c Re < 2000 though the limits are to some extent dependent on the properties of the internal fluid. For more viscous liquids and liquids contaminated with surface active agents the drag coefficient in this range of Reynolds number is found to be a function of surface tension only. For uncontaminated low viscosity fluids the drag coefficient decreases as the liquid viscosity is reduced. This is attributed to the effects of internal circulation.

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