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arXiv 1301.4479math-phmath.APmath.MPphysics.flu-dyn
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二维可压缩Euler方程的涡与自相似流

Vortical and Self-similar Flows of 2D Compressible Euler Equations

Manwai Yuen

摘要:

本文用分离法给出了二维可压缩欧拉方程的涡解和自相似解。这些解决方案补充牧野的解决方案在径向对称没有旋转。旋转的解决方案提供了新的信息,进一步加深了我们对海洋涡旋的理解和数值方法的参考例子。通过对新Emden方程的分析,给出了相应的爆破、时间周期和整体解存在条件。还提出了一个关于三维旋转解的猜想。

英文摘要:

This paper presents the vortical and self-similar solutions for 2D compressible Euler equations using the separation method. These solutions complement Makino's solutions in radial symmetry without rotation. The rotational solutions provide new information that furthers our understanding of ocean vortices and reference examples for numerical methods. In addition, the corresponding blowup, time-periodic or global existence conditions are classified through an analysis of the new Emden equation. A conjecture regarding rotational solutions in 3D is also made.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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