A variational principle for a fluid with a free surface
- 2 February 1967
- journal article
- Published by Cambridge University Press (CUP) in Journal of Fluid Mechanics
- Vol. 27 (2), 395-397
- https://doi.org/10.1017/s0022112067000412
Abstract
The full set of equations of motion for the classical water wave problem in Eulerian co-ordinates is obtained from a Lagrangian function which equals the pressure. This Lagrangian is compared with the more usual expression formed from kinetic minus potential energy.Keywords
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