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Prandtl 方程整体解的存在惟一性
Authors
徐新英
赵俊宁
Publication date
1 May 2006
Publisher
厦门大学学报( 自然科学版)
Abstract
考虑非定常的Prandtl 方程U( t, x ) = x mU1( t, x ) , 且m>=1,0<=x< L 的特殊情况, 在本文的条件下, 所研究的方程 具有奇性. 首先利用Crocco 变换把Prandtl 方程变换成一个关于w 的方程, 然后将其正则化, 借助于正则化以后的方程得 到w ( 正则化后方程的解) 及其各种一阶导数的估计. 利用得到的各种估计通过取极限得到了Cr occo 变换后方程解的存 在惟一性. 最后返回边界层, 得到Prandtl 方程全局解的存在惟一性
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Last time updated on 16/06/2016