Transient sulfur dioxide absorption inside a freely falling raindrop with terminal velocity

研究成果: Conference contribution

摘要

When a raindrop with fixed radius falls downward in association with terminal velocity, a recirculation bubble always accompanies the gas-phase flow field in the aft region of the drop. With regard to drop internal flow structure, it is sensitive to the drop's size. When the drop radius is small (e.g. rs=200μm), only a single vortex motion is seen inside the drop. Under such a situation, sulfur dioxide absorbed from the interface is mainly transported from the area in front of the aft stagnation point. In contrast, as the drop is relatively large, say, rs=500μm, it is of interest to find that a two-vortex motion, composed of a primary and a secondary vortexes, appears. As a result, the onset of SO2 transport process occurs at the drop's surface near where the two vortexes meet. Accordingly, it is recognized that transient SO2 transport processes inside a raindrop is essentially affected by drop size.

原文English
主出版物標題Air Pollution IX
編輯G. Latini, C.A. Brebbia, G. Latini, C.A. Brebbia
頁面629-638
頁數10
出版狀態Published - 2001 十二月 1
事件Ninth International Conference on Modelling, Monitoring and Management of Air Pollution: Air Pollution IX - Ancona, Italy
持續時間: 2001 九月 122001 九月 14

出版系列

名字Air Pollution IX

Other

OtherNinth International Conference on Modelling, Monitoring and Management of Air Pollution: Air Pollution IX
國家Italy
城市Ancona
期間01-09-1201-09-14

指紋

Sulfur dioxide
Vortex flow
Flow structure
Flow fields
Gases

All Science Journal Classification (ASJC) codes

  • Engineering(all)

引用此文

Chen, W-H. (2001). Transient sulfur dioxide absorption inside a freely falling raindrop with terminal velocity. 於 G. Latini, C. A. Brebbia, G. Latini, & C. A. Brebbia (編輯), Air Pollution IX (頁 629-638). (Air Pollution IX).
Chen, Wei-Hsin. / Transient sulfur dioxide absorption inside a freely falling raindrop with terminal velocity. Air Pollution IX. 編輯 / G. Latini ; C.A. Brebbia ; G. Latini ; C.A. Brebbia. 2001. 頁 629-638 (Air Pollution IX).
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Chen, W-H 2001, Transient sulfur dioxide absorption inside a freely falling raindrop with terminal velocity. 於 G Latini, CA Brebbia, G Latini & CA Brebbia (編輯), Air Pollution IX. Air Pollution IX, 頁 629-638, Ninth International Conference on Modelling, Monitoring and Management of Air Pollution: Air Pollution IX, Ancona, Italy, 01-09-12.

Transient sulfur dioxide absorption inside a freely falling raindrop with terminal velocity. / Chen, Wei-Hsin.

Air Pollution IX. 編輯 / G. Latini; C.A. Brebbia; G. Latini; C.A. Brebbia. 2001. p. 629-638 (Air Pollution IX).

研究成果: Conference contribution

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Chen W-H. Transient sulfur dioxide absorption inside a freely falling raindrop with terminal velocity. 於 Latini G, Brebbia CA, Latini G, Brebbia CA, 編輯, Air Pollution IX. 2001. p. 629-638. (Air Pollution IX).