Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/74919
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Transient deformation and drag of decelerating drops in axisymmetric flows |
Author: | Wadhwa, A. Magi, V. Abraham, J. |
Citation: | Physics of Fluids, 2007; 19(11):113301-1-113301-20 |
Publisher: | Amer Inst Physics |
Issue Date: | 2007 |
ISSN: | 1070-6631 1089-7666 |
Statement of Responsibility: | Amrita R. Wadhwa, Vinicio Magi and John Abraham |
Abstract: | <jats:p>Transient deformation and drag coefficients of decelerating drops in axisymmetric flows are numerically computed. The drag coefficients are compared with those of solid spheres. In the case of drops, the behavior of the drag coefficient is dependent on the deformation and internal circulation of the drops in addition to the factors which are important for solid spheres. These, in turn, are dependent on the gas-based Weber number (Weg) and the Ohnesorge number (Ohl). At the relatively low Weg of 1, when the deformation is small, the drag coefficients are about the same for the solid sphere and drop. When Weg is increased, the deformation increases and the difference increases. At the highest Weg of 100, the drop reaches a point of secondary breakup. In general, oblate shapes result in greater drag and prolate shapes in lower drag relative to the solid sphere. Increasing Ohl, which implies increasing viscous forces in the liquid relative to surface tension forces, leads to less deformation and hence lesser differences between solid and drop drag coefficients for a given Weg.</jats:p> |
Description: | Extent: 20p. |
Rights: | © 2007 American Institute of Physics |
DOI: | 10.1063/1.2800038 |
Published version: | http://dx.doi.org/10.1063/1.2800038 |
Appears in Collections: | Aurora harvest Mechanical Engineering publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.