Finite Element Method (FEM)

2D depth-integrated flow (5)

For this reason we look at the boundary conditions for Eq. 3-60 again in closer detail, which can be defined in the following way:

The set union of the two boundaries  and   makes up the whole element boundary . Ti are the components of the total shear force at the element boundary, which is composed of the inner friction forces and the (... hydrostatic) pressure. The total shear force Ti or  at the element boundary can be expressed as:

With these boundary conditions in mind we approach the weak form of our basis equations, the continuity equation being a simple first practice:


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Hydrodynamics of Floods
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TUHH

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