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.
Original language | English (US) |
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Article number | 126700 |
Journal | Physics Letters, Section A: General, Atomic and Solid State Physics |
Volume | 384 |
Issue number | 26 |
DOIs | |
State | Published - Sep 18 2020 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy
Keywords
- Brunt-Väisälä oscillations
- Compression
- Piezothermal effect
- Rotating fluid