Hydraulic models must also be validated against energy conservation properties!

Two recently published papers highlight the importance of validating hydraulic models not only in terms of water depth / flow velocity; but also against energy conservation properties.

• Energy conservation properties of Ritter solution for idealized dam break flow
  by Benjamin Dewals, Martin Bruwier, Sébastien Erpicum, Michel Pirotton & Pierre Archambeau
  Journal of Hydraulic Research
  http://www.tandfonline.com/doi/full/10.1080/00221686.2016.1175522
   
• Discretization of the divergence formulation of the bed slope term in the shallow-water equations and consequences in terms of energy balance
  by Martin Bruwier, Pierre Archambeau , Sébastien Erpicum , Michel Pirotton & Benjamin Dewals
  Applied Mathematical Modelling
  http://www.sciencedirect.com/science/article/pii/S0307904X16300373