Premium
Drag coefficients of water droplets decelerating in air
Author(s) -
Ogden T. L.,
Jayaweera K. O. L. F.
Publication year - 1971
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1002/qj.49709741419
Subject(s) - drag , drag coefficient , mechanics , reynolds number , physics , parasitic drag , meteorology , atmospheric sciences , environmental science , turbulence
The relation of drag coefficient to Reynolds number for decelerating water droplets was tested by releasing into a 50 m s −1 airstream droplets up to 230 μm in diameter. After travelling for 1.83 m in the airstream, the droplets passed through a small hole into still air, and the distances they subsequently travelled could be predicted fairly well by assuming that the effective drag coefficients were about 20 per cent below the steady‐velocity values.