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Updated: Aug 6, 2026
06:42
Magnetically Induced Rotating Rayleigh-Taylor Instability
Published on: March 3, 2017
Linear Rayleigh-Taylor instability with foams
A Bret1,2,3, A J DeVault3, S G Dannhoff3
1Universidad de Castilla-La Mancha, ETSI Industriales, 13071 Ciudad Real, Spain.
Physical Review. E
|July 24, 2026
Summary
The Rayleigh-Taylor instability (RTI) in foam can be stabilized in its elastic phase, contrary to homogeneous models. This foam behavior is crucial for inertial confinement fusion (ICF) and other scientific fields.
Area of Science:
- Plasma Physics
- Materials Science
- Fluid Dynamics
Background:
- The Rayleigh-Taylor instability (RTI) is a critical phenomenon in various scientific fields, including inertial confinement fusion (ICF).
- Foams exhibit distinct elastic, plastic, and fracture phases under stress, influencing instability dynamics.
Purpose of the Study:
- To analyze the linear phase of RTI in the presence of foam.
- To compute the growth rate of RTI in the elastic and plastic phases of foam.
- To investigate the stabilizing effects of foam's elastic properties on RTI.
Main Methods:
- Analytical computation of the RTI growth rate.
- Modeling foam behavior in elastic and plastic regimes.
- Linear stability analysis.
Main Results:
- RTI growth rate is analytically determined based on foam microstructure.
- Foam's elastic phase can stabilize RTI for specific wavelengths.
- Homogeneous foam models overestimate RTI growth by neglecting elasticity.
Conclusions:
- The elastic nature of foam plays a significant role in stabilizing RTI.
- Understanding foam behavior under stress is crucial for ICF scenarios and other applications.
- Results highlight the importance of considering material properties in instability analysis.
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