The van Dommelen and Shen singularity in the Prandtl equations

The van Dommelen and Shen singularity in the Prandtl equations
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DOI:
10.1016/j.aim.2016.11.013
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发表时间:
2015-12
期刊:
arXiv: Analysis of PDEs
影响因子:
--
通讯作者:
I. Kukavica;V. Vicol;Fei Wang
I. Kukavica;V. Vicol;Fei Wang
中科院分区:
其他
文献类型:
--
作者:
I. Kukavica;V. Vicol;Fei Wang

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1980年,货车Dommelen和Shen提供了一个数值模拟,预测了在非平凡的欧拉背景下,从光滑的初始数据出发,普朗特边界层方程中奇点的自发产生。本文通过严格建立边界层厚度的有限时间爆破,证明了这一数值猜想。
In 1980, van Dommelen and Shen provided a numerical simulation that predicted the spontaneous generation of a singularity in the Prandtl boundary layer equations from a smooth initial datum, for a nontrivial Euler background. In this paper we prove this numerical conjecture by rigorously establishing the finite time blowup of the boundary layer thickness.