Miscible fluids mixing via alternating injection in a radial Hele-Shaw cell: experimental and numerical studies

Chi Chian Chou, Avdhesh Kumar, Po Chun Lu, Ching Yao Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

An alternating injection scheme is experimentally employed to study the mixing performance of miscible viscous fluids in a radial Hele-Shaw cell. The concept of the covered area is introduced to quantify the mixing efficiency and various numerical simulations are performed to support and verify the experimental results. It has been observed that the alternating injection can improve the mixing efficiency, depending on the prominence of the channeling interactions. The alternating injection can effectively improve the mixing efficiency under certain conditions, where weaker fingering interactions are dominated by diffusive mixing.

Original languageEnglish
Pages (from-to)531-538
Number of pages8
JournalJournal of Mechanics
Volume38
DOIs
StatePublished - 2022

Keywords

  • Hele-Shaw cell
  • alternating injection
  • mixing efficiency
  • viscous fingering

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