Finite Element Method (FEM)

2D depth-integrated flow (6)

Afterwards the momentum equation is done at the example of the x-component:

Eq. 3-65 is already sorted qualitatively, so only the components of the third integral have to be transformed further. As it can be seen, the second-order derivatives are collected in the third integral, just as the components that are necessary for a physically sensible boundary integral definition. The components of the third integral are processed individually for better understanding, only using the rules of partial differentiation and the gradient theorem.

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Hydrodynamics of Floods






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