论文标题

压电效应的流体模型

Fluid Model for the Piezothermal Effect

论文作者

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

论文摘要

当压缩外部施加的电势场中的气体时,会出现温度梯度。这被称为压电效应。可以通过线性化流体模型分析计算压电效应的时间依赖性行为。流体模型结果与先前的数值计算之间的定量差异可以通过粘度和热电导率的影响来解释。流体模型将压电效应呈现为浮力振荡的光谱,从而产生了对该效果的新物理见解。

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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