Fluid Model for the Piezothermal Effect

E. J. Kolmes; V. I. Geyko; N. J. Fisch

doi:10.1016/j.physleta.2020.126700

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arXiv · 2006.13927

Fluid Model for the Piezothermal Effect

E. J. Kolmes·V. I. Geyko·N. J. Fisch

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Abstract

When a gas in an externally imposed potential field is compressed, temperature gradients appear. This has been called the piezothermal effect. It is possible to analytically calculate the time-dependent behavior of the piezothermal effect using a linearized fluid model. Quantitative differences between the fluid-model results and previous numerical calculations can be explained by the effects of viscosity and heat conductivity. The fluid model casts the piezothermal effect as a spectrum of buoyancy oscillations, which yields new physical insights into the effect.

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E. J. Kolmes, V. I. Geyko, N. J. Fisch. 2020-06-24. Fluid Model for the Piezothermal Effect. https://doi.org/10.1016/j.physleta.2020.126700

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