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arXiv 2303.04775math.APnlin.SI
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分数阶非线性Boussinesq方程的精确解

Exact solutions for the fractional nonlinear Boussinesq equation

A. Ceretani, F. Falcini, R. Garra

摘要:

本文研究了非线性Boussinesq方程的封闭形式的精确解的存在性。我们表明,这种分数方程自然出现时,经典的非线性达西定律是由一个空间分数。在对分数阶模型进行了物理讨论之后,我们给出了几种不同初值和边界条件下的封闭形式的精确解。我们提供的解决方案,稳定和非稳定的情况下,考虑古典和分数阶导数的时间。

英文摘要:

We investigate the existence of exact solutions in closed form to a fractional version of the nonlinear Boussinesq equation for groundwater flow through an unconfined aquifer. We show this fractional equation appears naturally when the classical nonlinear Darcy's law is replaced by a space-fractional one. After a physical discussion on the fractional model, we give several exact solutions in closed form for special choices of initial and boundary data. We provide solutions for steady and unsteady cases, by considering both classical and fractional derivatives in time.

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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