Viscous peeling of an elastic plate
= Viscous peeling of an elastic plate
{title2=$U_p\sim Bh_f^3/(\mu l_p^5)$}
A fluid advancing under an <elastic plate> can be resisted mainly by <lubrication theory> flow near its front. For front gap $h_f$ and peeling length $l_p$, the elastic pressure gradient is of order $Bh_f/l_p^5$, while the gap <volume flux> is of order $Bh_f^4/(\mu l_p^5)$. Mass balance therefore gives peeling speed $U_p\sim Bh_f^3/(\mu l_p^5)$.