Piston-effect-induced thermal jets in near-critical fluids.

@article{Froehlich2006PistoneffectinducedTJ,
  title={Piston-effect-induced thermal jets in near-critical fluids.},
  author={Thomas Froehlich and Daniel Beysens and Yves Garrabos},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  year={2006},
  volume={74 4 Pt 2},
  pages={046307}
}
In very compressible fluids, such as fluids near their critical point, the bulk fluid is adiabatically thermalized by the expansion of a hot boundary layer. Thanks to this thermomechanical process (the so-called piston effect) the fluid velocity at the edge of the boundary layer can become very high when the heating power is concentrated in a fissure. Spectacular jets are then observed in SF6 and CO2. Data obtained under weightlessness (in order to remove convection) and data obtained under… CONTINUE READING