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Conducting Elevated Temperature Normal and Combined Pressure-Shear Plate Impact Experiments Via a Breech-end Sabot Heater System
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Non-equilibrium Casimir force between vibrating plates.

Andreas Hanke1

  • 1Department of Physics, University of Texas at Brownsville, Brownsville, Texas, United States of America. hanke@phys.utb.edu

Plos One
|January 18, 2013
PubMed
Summary
This summary is machine-generated.

We investigated the force between plates with a vibrating fluid. The study reveals a time-dependent force with a lag, offering insights into fluid dynamics and the Casimir effect.

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Area of Science:

  • Condensed matter physics
  • Non-equilibrium statistical mechanics

Background:

  • Understanding fluctuation-induced forces is crucial in various physical systems.
  • Driving fluids out of equilibrium introduces complex dynamic behaviors.

Purpose of the Study:

  • To investigate the time-dependent force between two plates confining a correlated fluid.
  • To analyze the effects of mechanical driving (harmonic vibrations) on fluid equilibrium.
  • To characterize the fluctuation-induced force generated by a vibrating plate.

Main Methods:

  • Modeling a fluid confined between two plates.
  • Applying harmonic vibrations to one plate to drive the system out of equilibrium.
  • Assuming purely relaxational dynamics for the fluid.
  • Calculating the fluctuation-induced force using theoretical methods.

Main Results:

  • A time-dependent force is generated between the plates.
  • The force exhibits a positive lag time relative to the driving vibrations.
  • Two distinct contributions to the force were identified: stress diffusion and resonant dissipation.
  • The findings relate to the dynamic Casimir effect.

Conclusions:

  • The study provides a theoretical framework for understanding non-equilibrium fluctuation forces in confined fluids.
  • The identified force contributions offer new avenues for experimental investigation.
  • Potential applications in measuring time-dependent Casimir forces are discussed.