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SEEP/W 2012 groundwater seepage analysis.

Formulation

 

Soil Properties

 

The hydraulic conductivity of the soil is a function of the negative pore-water pressure in the unsaturated regions. The rate of change in water content is dependent on the pore-water pressure during transient processes. Hydraulic conductivity can be defined as anisotropic in two orthogonal directions.

 

Iterative Process

 

The nonlinear nature of the finite element equations is handled using an efficient radial search iterative scheme. Graphing tools are available at run-time to help you judge if convergence has been achieved. This has proved to be extremely useful in solving highly nonlinear flow systems.

 

Flux Quantities

 

SEEP/W computes the total flux across single or multiple lines drawn through the mesh.

 

Features

 

  • Analysis types include steady-state confined and unconfined flow, transient flow, 2-D flow in a cross-section or in plan view, and 3D axisymmetric flow.

  • Boundary condition types include total head, pressure head, or flux specified as a constant or a function of time; pressure head; transient flux as a function of computed head; review and adjustment of seepage face conditions.

  • Volumetric water content and conductivity functions can be estimated from basic parameters and grain-size functions.

  • Adaptive time stepping to ensure the use of optimal time steps in transient analyses with sudden changes in boundary conditions.

  • Flow path deliniation.

  • And many more!

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