TY - JOUR
T1 - Comparative investigation of liquid film thickness and interfacial wave properties of swirling gas-liquid flows
AU - Liu, Li
AU - Wang, Ke
AU - Bai, Bofeng
N1 - Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2020/2/23
Y1 - 2020/2/23
N2 - The liquid film in swirling flows plays an important role in mass, momentum and heat transfer, whose properties differ from those in non-swirling regimes. In this paper, we employ the image processing and statistical analysis to compare the liquid film thickness and wave properties of swirling gas column, swirling intermittent and swirling annular flow. The results indicate that the film thickness is intimately linked to the flow regimes, i.e., uniform in swirling gas column flow, gradual thickening in swirling intermittent flow, and increasing up to a maximum point and decreasing thereafter in swirling annular flow. Additionally, the wave frequency is proportional to jg but inversely proportional to jl in swirling gas column flow, which is to the contrary in swirling intermittent flow. In swirling annular flow, the waves show less correlation at a finite time and the frequency decreases with jg, but the influence of jl depends on flow distance.
AB - The liquid film in swirling flows plays an important role in mass, momentum and heat transfer, whose properties differ from those in non-swirling regimes. In this paper, we employ the image processing and statistical analysis to compare the liquid film thickness and wave properties of swirling gas column, swirling intermittent and swirling annular flow. The results indicate that the film thickness is intimately linked to the flow regimes, i.e., uniform in swirling gas column flow, gradual thickening in swirling intermittent flow, and increasing up to a maximum point and decreasing thereafter in swirling annular flow. Additionally, the wave frequency is proportional to jg but inversely proportional to jl in swirling gas column flow, which is to the contrary in swirling intermittent flow. In swirling annular flow, the waves show less correlation at a finite time and the frequency decreases with jg, but the influence of jl depends on flow distance.
KW - Image processing
KW - Interfacial wave properties
KW - Liquid film thickness
KW - Statistical analysis
KW - Swirling gas-liquid flow
UR - https://www.scopus.com/pages/publications/85076111217
U2 - 10.1016/j.ces.2019.115407
DO - 10.1016/j.ces.2019.115407
M3 - 文章
AN - SCOPUS:85076111217
SN - 0009-2509
VL - 213
JO - Chemical Engineering Science
JF - Chemical Engineering Science
M1 - 115407
ER -