Sulfur Dioxide Absorption In A Cloud Droplet Under The
Influence Of Convective Flows
Author(s)
W.H. Chen & J.J. Lu
Abstract
Sulfur dioxide absorption in a cloud droplet
under the influence of connective flows
W.H. Chen & JJ. Lu
Department of Environmental Engineering and Sanitation
Foo Yin Institute of Technology
Taliao, KaohsiungHsien, Taiwan, 831, R.O.C.
Abstract
Unsteady absorption characteristics of sulfur dioxide by a cloud droplet in
convective flows are predicted numerically to recognize the physical mass
transport processes. Three different Reynolds numbers, Reg=0.643, 1.287, and
12.87 are studied and compared with each other by considering the droplet with
various velocities. The results indicate that for the Reynolds number of 0.643,
sulfur dioxide always penetrates toward the droplet centerline throughout the
entire absorption period. In contrast, when the Reynolds number is 12.87, most
of the time the concentration contours parallel the streamlines and the lowest
sulfur dioxide concentration is located at the vortex center. As a consequence,
the diffusion distance is reduced by a factor of three
Keywords
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