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Fluid model for the piezothermal effect
Physics Letters A ( IF 2.6 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.physleta.2020.126700
E.J. Kolmes , V.I. Geyko , N.J. Fisch

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.

中文翻译:

压热效应的流体模型

摘要 当外加势场中的气体被压缩时,会出现温度梯度。这被称为压热效应。可以使用线性化流体模型分析计算压电效应随时间变化的行为。流体模型结果与先前数值计算之间的定量差异可以通过粘度和热导率的影响来解释。流体模型将压热效应投射为浮力振荡的频谱,从而对这种效应产生了新的物理见解。
更新日期:2020-09-01
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