Resurrecting Dead-water Phenomenon
  We revisit experimental studies performed by Ekman on dead-water using modern techniques in order to present new insights on this peculiar phenomenon. We extend its description to more general situations such as a three-layer fluid or a linearly stratified fluid in presence of a pycnocline, showing the robustness of dead-water phenomenon. We observe large amplitude nonlinear internal waves which are coupled to the boat dynamics, and we emphasize that the modeling of the wave-induced drag requires more analysis, taking into account nonlinear effects. 
Matthieu Mercier (Phys-ENS), Romain Vasseur (Phys-ENS), Thierry   Dauxois (Phys-ENS)
physics.flu-dyn