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.
|Physics Letters, Section A: General, Atomic and Solid State Physics
|Published - Sep 18 2020
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy
- Brunt-Väisälä oscillations
- Piezothermal effect
- Rotating fluid