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Results tagged with fluid-dynamics
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user 34463
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Do circular pipes maximize flow rate?
The answer is positive, this is a consequence of a result by Talenti ["Elliptic Equations and Rearrangements", Annali SNS 3 (1976)]. Let $k>0$, $-\Delta u= k$ in $U$, $u=0$ on $\partial U$, and consid …
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