Catastrophic Phase Inversion in High-Reynolds-Number Turbulent Taylor-Couette 
Flow

Bakhuis, Dennis; Ezeta, Rodrigo; Bullee, Pim A.; Marin, Alvaro; Lohse, Detlef; Sun, Chao; Huisman, Sander G.

doi:10.1103/PhysRevLett.126.064501

アイテム詳細

登録内容を編集ファイル形式で保存

一時保存へ追加

タグ情報を表示リリース履歴を表示詳細要約

公開

学術論文

Catastrophic Phase Inversion in High-Reynolds-Number Turbulent Taylor-Couette Flow

MPS-Authors

/persons/resource/persons192998

Lohse, Detlef
Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

External Resource

There are no locators available

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

フルテキスト (公開)

公開されているフルテキストはありません

付随資料 (公開)

There is no public supplementary material available

引用

Bakhuis, D., Ezeta, R., Bullee, P. A., Marin, A., Lohse, D., Sun, C., & Huisman, S. G. (2021). Catastrophic Phase Inversion in High-Reynolds-Number Turbulent Taylor-Couette Flow. Physical Review Letters, 126:. doi:10.1103/PhysRevLett.126.064501.

引用: https://hdl.handle.net/21.11116/0000-0008-16B4-4

要旨

Emulsions are omnipresent in the food industry, health care, and chemical synthesis. In this Letter the
dynamics of metastable oil-water emulsions in highly turbulent (1011 ≤ Ta ≤ 3 × 1013) Taylor-Couette
flow, far from equilibrium, is investigated. By varying the oil-in-water void fraction, catastrophic phase
inversion between oil-in-water and water-in-oil emulsions can be triggered, changing the morphology,
including droplet sizes, and rheological properties of the mixture, dramatically. The manifestation of these
different states is exemplified by combining global torque measurements and local in situ laser induced
fluorescence microscopy imaging. Despite the turbulent state of the flow and the dynamic equilibrium of
the oil-water mixture, the global torque response of the system is found to be as if the fluid were Newtonian,
and the effective viscosity of the mixture was found to be several times bigger or smaller than either of its
constituents.