Abstract
MANY theoretical and experimental investigations have been carried out on collisions between a single sphere and one or more smaller ones as the former moves through a field of the latter. Pertinent physical phenomena are the growth of raindrops by coalescence and the scavenging on non-liquid particulates from the atmosphere. An index of the efficiency of these processes is given by the concept of collision efficiency. A large drop moving through the atmosphere under gravitational forces sweeps out a cylindrical volume equal in cross-section to that of the advancing drop.
Similar content being viewed by others
Article PDF
References
Langmuir, I., J. Meteorol., 5, 175 (1948).
Herne, H., Aerodynamic Capture of Particles (Pergamon Press, 1960).
Englemann, R. J., AEC Research and Development Report HW–79382 (1963).
Oakes, B., Aerodynamic Capture of Particles (Pergamon Press, 1960).
Magarvey, R. H., and Curry, M. J., J. Sci. Instrum., 43, 482 (1966).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
MAGARVEY, R., HOSKINS, J. Entrainment of Small Particles by a Large Sphere. Nature 218, 460 (1968). https://doi.org/10.1038/218460a0
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1038/218460a0
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.