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astro-ph2001★ 1 cited
A powerful local shear instability in stratified disks
D. Richard, F. Hersant, O. Dauchot +3
In this paper, we show that astrophysical accretion disks are dynamically unstable to non-axisymmetric disturbances. This instability is present in any stably stratified anticyclon…
cond-mat2001★ 16 cited
"Barchan" dunes in the lab
O. Dauchot, F. Lechenault, C. Gasquet +1
We demonstrate the feasibility of studying dunes in a laboratory experiment. It is shown that an initial sand pile, under a wind flow carrying sand, flattens and gets a shape recal…