Mixing of miscible liquids in gas-segmented serpentine channels

Dogan, Hakan; Nas, Selman; Muradoglu, Metin

doi:10.1016/j.ijmultiphaseflow.2009.07.006

Mixing of miscible liquids in gas-segmented serpentine channels

Atıf İçin Kopyala

Dogan H., Nas S., Muradoglu M.

INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, cilt.35, sa.12, ss.1149-1158, 2009 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 35 Sayı: 12
Basım Tarihi: 2009
Doi Numarası: 10.1016/j.ijmultiphaseflow.2009.07.006
Dergi Adı: INTERNATIONAL JOURNAL OF MULTIPHASE FLOW
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.1149-1158
İstanbul Teknik Üniversitesi Adresli: Evet

Özet

The chaotic mixing of miscible liquids in gas-segmented serpentine channels is studied computationally in a two-dimensional setting Passive tracer particles are used to visualize and quantify the mixing. The molecular diffusion is ignored and only the mixing due to chaotic stirring is considered. Mixing is quantified using the entropy and intensity of segregation measures The effects of various non-dimensional parameters on the quality of mixing are investigated and it is found that the relative bubble size, the capillary number and the non-dimensional channel corrugation length are the most important parameters influencing the mixing. The mixing is found to be weakly dependent on Reynolds number and nearly independent of viscosity ratio. (C) 2009 Elsevier Ltd All rights reserved.