Application of the Stokes Drag on Spheroids to the Drag on Disks and CylindersSource: Journal of the Atmospheric Sciences:;1987:;Volume( 044 ):;issue: 018::page 2674Author:Weinheimer, Andrew J.
DOI: 10.1175/1520-0469(1987)044<2674:AOTSDO>2.0.CO;2Publisher: American Meteorological Society
Abstract: The measured drag forces on cylinders and disks obtained by Jayaweera and Cottis and by Kajikawa are compared with those computed for Stokes flow around equivalent spheroids. For both the disks and cylinders, comparisons an made both for flow parallel to and perpendicular to the solids' symmetry axes. The ratios of measured to Stokes drag forces range from 0.59 to 1.14 and cover Reynolds numbers ranging from 1.6 ? 10?3 to 2.0 ? 10?1. Thus these results allow for the convenient calculation, using the Stokes drag expression, of the terminal velocities of ice crystals falling in the atmosphere with major dimensions of up to a few tens of microns.
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| contributor author | Weinheimer, Andrew J. | |
| date accessioned | 2017-06-09T14:27:38Z | |
| date available | 2017-06-09T14:27:38Z | |
| date copyright | 1987/09/01 | |
| date issued | 1987 | |
| identifier issn | 0022-4928 | |
| identifier other | ams-19630.pdf | |
| identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4155768 | |
| description abstract | The measured drag forces on cylinders and disks obtained by Jayaweera and Cottis and by Kajikawa are compared with those computed for Stokes flow around equivalent spheroids. For both the disks and cylinders, comparisons an made both for flow parallel to and perpendicular to the solids' symmetry axes. The ratios of measured to Stokes drag forces range from 0.59 to 1.14 and cover Reynolds numbers ranging from 1.6 ? 10?3 to 2.0 ? 10?1. Thus these results allow for the convenient calculation, using the Stokes drag expression, of the terminal velocities of ice crystals falling in the atmosphere with major dimensions of up to a few tens of microns. | |
| publisher | American Meteorological Society | |
| title | Application of the Stokes Drag on Spheroids to the Drag on Disks and Cylinders | |
| type | Journal Paper | |
| journal volume | 44 | |
| journal issue | 18 | |
| journal title | Journal of the Atmospheric Sciences | |
| identifier doi | 10.1175/1520-0469(1987)044<2674:AOTSDO>2.0.CO;2 | |
| journal fristpage | 2674 | |
| journal lastpage | 2676 | |
| tree | Journal of the Atmospheric Sciences:;1987:;Volume( 044 ):;issue: 018 | |
| contenttype | Fulltext |