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- 저자 : ( Shuhn Shyurng Hou ) (검색결과 1 건)
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Drop Interaction in a Burning Drops Stream
( Wei Dong Hsieh ),( Chun Kuei Chen ),( Ta Hui Lin ),( Shuhn Shyurng Hou ) 한국액체미립화학회 2010 한국액체미립화학회 학술강연회 논문집 Vol.2010 No.-
In a spray combustion flow field, a burning drop may interact with other drops flowing in parallel streams or along the same flow stream. Many studies on drop interaction in parallel streams were reported. However, upstream/downstream interaction of drops along a burning drops stream has not been well studied literately. To understand such interesting phenomena, we established an experimental system to examine a burning dodecane drops stream with variable drop inter-spaces in a high-temperature oxygen-rich environment. Effects of the drop inter-space (s/di) and the oxygen concentration ΩO2) in the hot environment on the interaction of burning drops were investigated in the study. Drop inter-spaces were chosen to be 2.5, 5, 10, 30 and 100. Oxygen concentrations of 21%, 25% and 30% in the hot environment were considered. The flame propagation and interactions between the burning drops in the stream were performed. Results showed that the diffusion flame enclosing the drops stream is narrowed with the increase of ΩO2 whereas effect of ΩO2 is not obvious when s/di>30. The overall flame length was longer for lower s/di due to flame propagating across the drops. Evaporation rates remains constant when s/di>30 indicating a weak interaction of drops along the same stream.
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