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Magnetically Induced Rotating Rayleigh-Taylor Instability
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A bottom-up approach to construct or deconstruct a fluid instability.

Darío M Escala1, Alberto P Muñuzuri2

  • 1Group of Nonlinear Physics, Department of Physics, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain.

Scientific Reports
|December 22, 2021
PubMed
Summary
This summary is machine-generated.

Controlling fluid instabilities is crucial for industry. This study uses interfacial chemical reactions to suppress or induce viscous fingering, offering a new control method for complex fluid systems.

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Area of Science:

  • Fluid dynamics
  • Chemical engineering
  • Interface science

Background:

  • Fluid instabilities, particularly viscous fingering, pose significant challenges in various industrial applications.
  • Despite extensive research, controlling these instabilities remains a complex problem.

Purpose of the Study:

  • To experimentally investigate the displacement of two fluids with differing viscosities at their interface.
  • To demonstrate the use of interfacial chemical reactions to control fingering instabilities at will.

Main Methods:

  • Experimental analysis of fluid displacement at the interface of two immiscible fluids with varying viscosities.
  • Designing fluid compositions to induce a chemical reaction specifically at the interface.
  • Utilizing the interfacial chemical reaction to manipulate the occurrence of viscous fingering.

Main Results:

  • Successfully demonstrated the ability to suppress or induce fingering instability by controlling interfacial chemical reactions.
  • Established a direct link between interfacial chemical activity and the suppression/induction of viscous fingering.

Conclusions:

  • Interfacial chemical reactions provide a novel and effective method for controlling viscous fingering instabilities.
  • This approach offers a roadmap for managing instabilities in more complex fluid systems.