Bernoulli Effect

• $p_m =$ ``mouth pressure''
• Flow inside ``mouth'' neglected
• Pressure kinetic energy converts to flow kinetic energy within channel
• Jet ``carries its own pressure'' until it dissipates
• Jet dissipation can go to
  • heat (now allowing ``friction'' into the model)
  • vortices (angular momentum)
  • radiation (sound waves)
  • pressure recovery:
    (flow kinetic energy $\longrightarrow$ pressure kinetic energy)