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Experimental investigation of the evaporation of suspended mono-sized heptane droplets in turbulence intensities approaching unity
Combustion and Flame ( IF 5.8 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.combustflame.2020.06.007
Cameron Verwey , Madjid Birouk

Abstract For decades, experimental investigations of turbulent droplet evaporation have generally followed one of two distinct paths: wind tunnel experiments, which generate significant mean flow but low turbulence intensity, and stirred chamber configurations, which yield the opposite characteristics. The present study bridges the gap between these two established techniques by modifying a fan-stirred spherical chamber to incorporate a controllable mean flow while retaining the attributes of highly-energetic homogeneous and isotropic turbulence. Heptane droplets with a fixed initial diameter, d0, of 500 ± 10 µm are suspended on the intersection of two microfibers and evaporated in pockets of high-intensity turbulence (27%

中文翻译:

湍流强度接近统一的悬浮单尺寸庚烷液滴蒸发的实验研究

摘要 几十年来,湍流液滴蒸发的实验研究通常遵循两种不同路径中的一种:风洞实验,产生显着的平均流但湍流强度低,和搅拌室配置,产生相反的特性。本研究通过修改风扇搅拌球室以包含可控平均流,同时保留高能均匀和各向同性湍流的属性,弥合了这两种既定技术之间的差距。具有固定初始直径 d0 为 500 ± 10 µm 的庚烷液滴悬浮在两条微纤维的交叉点上,并在高强度湍流袋中蒸发(27%
更新日期:2020-09-01
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