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arXiv 0710.2355physics.flu-dynphysics.gen-ph
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可压缩流体中的参数internal waves

Parametric internal waves in a compressible fluid

Kausik S. Das, Stephen W. Morris, A. Bhattacharyay

摘要:

我们描述了振动对有限体积流体的影响,由于其可压缩性,流体是密度分层的。我们表明,内部重力声波可以参数不稳定的振动。由此产生的不稳定性类似于经典的法拉第不稳定性的表面波,虽然修改的可压缩性质的流体。在气液临界点附近进行实验观察是可能的。

英文摘要:

We describe the effect of vibration on a confined volume of fluid which is density stratified due to its compressibility. We show that internal gravity-acoustic waves can be parametrically destabilized by the vibration. The resulting instability is similar to the classic Faraday instability of surface waves, albeit modified by the compressible nature of the fluid. It may be possible to observe experimentally near a gas-liquid critical point.

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