Published March 31, 2021 | Version v2
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Isothermal anelastic approximation

  • 1. Department of Earth and Ocean Sciences, National Defense Academy, Yokosuka, Kanagawa 239-8686, Japan

Description

This paper constructs a variant of the anelastic approximation; its energetics and the conditions for its applicability, in addition, are elucidated. It is shown that the Boussinesq approximation is reproducible as a limiting case of this variant. On the other hand, it also turns out that the variant is inapplicable to an ideal gas.

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