Channel flow with multiple bumps at medium Reynolds number

Channel flow with multiple bumps at medium Reynolds number, starting from rest. The flow shows a very complex behaviour, on large as well as small scales.

• Distribution of temperature/concentration via Boussinesq model
  
  

  Visualization via distribution of the concentration in the flow field, starting from the inlet (first, shaded, 3.1 MB, and second with different color maps, 2.9 MB), and via temperature distribution from the heated walls (third and fourth, shaded, 2.5 MB and 3.2 MB).
  

  
  
  
  
  
  

  
  
  
  
  
  
  

• Pressure
  
  

  Visualization via pressure plots, shaded (first, 2.6 MB) and via isolines (second, 9.1 MB).
  

  
  
  
  
  
  
  

• Streamfunction
  
  

  Visualization via streamline plots, shaded (first, 2.9 MB) and via isolines (second, 9.5 MB).
  

  
  
  
  
  
  
  

• Velocity
  
  

  Visualization via vector plots (12.2 MB).