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SVFlux 2D / 3D

Detailed Description

SVFlux 2D / 3D

SVFlux 2D / 3D

SVFlux 2D Introduction

SVFlux 2D represents the next level in seepage modeling. Designed to be simple and effective, the software offers features designed to allow the user to focus on seepage solutions, not convergence problems or difficult mesh creation.

Great care has been taken to model our geometry CAD-style input after the popular AutoCAD(TM) software. Freeform boundary equations and an optional soil database of over 6000 soils to choose from further simplify model design.

The finite element solution makes use of fully automatic mesh generation and mesh refinement to solve the problem quickly as well as indicating zones of critical gradient.








SVFlux 2D Key Features:

  • AutoCAD(TM) style CAD input
  • Model saturated or unsaturated flow
  • Fully automatic mesh generation
  • Fully automatic mesh refinement
  • Fully automatic time-step refinement for transient problems
  • Contour plots of pressure/head
  • Vector plots of flow gradients
  • Flux section plots

SVFlux 2D Simulation Features

  • Steady-state analysis.
  • Transient (time dependant) analysis.
  • Saturated or unsaturated analysis.
  • Flux sections may be placed at any location in the model to summarize water flow across a section.
  • Water flow with time may be tracked across flux sections.
  • Finite element analysis by the Galerkin method. The solver uses advanced features such as preconditioning of the convergence matrix as well as staging and automatic mesh refinement to achieve solutions with greater stability than any other software currently available.
  • Anisotropic analysis.
  • Anisotropic analysis at any angle (version 3.0).
  • Plan view analysis (version 3.0).
  • Axisymmetric analysis (version 3.0).
  • Fully automatic mesh generation. Mesh generation may be limited by a maximum number of nodes or by a maximum specified error.
  • Fully automatic mesh refinement. Mesh refinement is based on the relative error of the governing equation and therefore automatically locates critical zones. In a transient analysis a different mesh is generated for each time step. SVFlux is currently the only groundwater package in the world to offer this feature.
  • Fully automatic time-step refinement for transient analysis. The time-steps selected by the solver are independant of the plotting intervals selected by the user.
  • Add contaminant transport analysis with our ChemFlux software.
  • Perched or multiple water tables may be incorporated.

Concrete Dam

Construction Pump

Construction Sump

Construction Excavation




SVFlux 2D Model Design Features

  • CAD style entry of geometry.
  • Grid, snapping, and object snapping features available.
  • Zooming, panning features available.
  • Import AutoCAD DXF geometry and incorporate it directly in the model. The automatic mesh generation will automatically allign node points with line segment end points.
  • Graphically assign boundary conditions.
  • Head or flux boundary conditions may be specified as contants or free-form equations. Free form equations may be specified as a function of position or time (i.e. h=30+exp(t)*2.5)
  • Review boundary conditions are implemented to determine the outcrop of the water table on downstream slopes.
  • Tables of net flux data may be cut and pasted into SVFlux to act as boundary conditions. This feature allows modeling of flux boundaries where weather station data is available.
  • Problems may be entered in Metric or Imperial units
  • All aspects of all models are stored in a database which may be placed on a server. Multiple users may be "plugged in" to the same modeling database.
  • Import soil-water characteristic curve or permeability data from the SoilVision software. The SoilVision database contains laboratory data on over 6000 soil-water characteristic curves, over 2500 ksat values, and over 400 unsaturated permeability curves.
  • Region geometry may be cut and pasted into the model from tabular sources such as Excel.
  • Initial water table for a transient analysis may be graphically drawn on the problem or imported as heads from a steady-state analysis.
  • A central database of soil properties for all entered seepage problems is maintained. New problems may draw soils from existing problems.
  • Problem geometry may be imported from existing problems.
  • Existing problems may be saved under a new name in the database to allow quick generation of multiple scenarios.
  • Colors or patterns of soil regions may be specified.
  • Manual entry of region coordinate points.
  • Lines may be added to model to force mesh refinement along a linear object.
  • Internal boundary conditions may be set or node density specified along internal line objects.
  • Sketch text or lines may be added to the model design.
  • Graphical model design may be exported as a WMF or DXF file and/or printed.
  • Bitmap or DXF geometry may be imported and layered behind model geometry to simplify model creation (version 3.0).

SVFlux 2D Output Features

  • Color contour plots of head, pore-water pressure, kx, ky, water storage, and volumetric water content. Custom color shadings may be specified.
  • Plots may be zoomed to isolate any region of interest.
  • Vector plots of gradients.
  • Volume or water volume integrals may be computed over the entire problem or any particular region of interest.
  • Mesh plots track mesh refinement.
  • Plots of value versus time may be generated at any coordinate for the following values: head, pore-water pressure, kx, ky, volumetric water content, and water storage.
  • Surface plots of any 2D variable over the problem region may be produced.
  • Overlaying of plots may be performed. For example, vectors may be shown in Region 1 while contours of head may be shown in Region 2.
  • Text and line art may be added to output.
  • Graphical output may be exported to WMF, DXF, JPG, or BMP formats.
  • Transient results may be animated.
  • Plotting of flowlines.




SVFlux 2D Applications

  • Unconfined flow.
  • Infiltration / precipitation.
  • Design of earth covers.
  • Pond infiltration.
  • Excess pore-water pressure build-up and dissipation.
  • Seepage modeling involving geomembranes.
  • Water and contaminant movement (with ChemFlux) in mine tailings and leach pads.
  • Time-dependant water flow.
  • Water (and contaminant) flow in the unsaturated (vadose) zone.
  • Aquifer recharge.
  • Dam seepage.

SVFlux 2D Documentation

The following manuals document the operation of the SVFlux software. The design of the software makes it simple to learn and use. Most users are able to learn how to use the software effectively to create 2D problems within 30-60 minutes.

  • User's manual - documents specific operation of software.
  • Tutorial manual - Step-by-step instructions guides the user through creation of 2D and 3D problems.
  • Theory manual - documents the theory of the governing partial differential equations used in the solution of the seepage problem.
  • Verification manual - benchmarks the SVFlux software against typical seepage problems published in texts, journal papers, or manuals from other software packages.






SVFlux 3D Introduction

SVFlux 3D represents the ultimate in the 3D modeling of saturated and unsaturated groundwater flow. Our simple AutoCAD(TM) style CAD input module allows for creation of your model as a series of surfaces and layers. Soil properties may be input from laboratory data or selected from our database of laboratory data on over 6,000 soils.

Once the model is input our powerful finite element solver will take over. Mesh generation and refinement is fully automatic allowing you to focus on the solution and not on convergence problems.

Visualize the results of your analysis as contour plots of pressure or head as 2D slices through your problem. Move up to our visualization module for advanced plots including pathlines, transparency, cut-aways, isosurfaces, and animation.



SVFlux 3D Key Features:

  • 85% average reduction in modeling time over comparable seepage software
  • Automatic pinching out of intersecting soil layers
  • AutoCAD(TM) style CAD input
  • Model saturated or unsaturated flow
  • Models stored in a database for later retrieval
  • Fully automatic mesh generation based on geometry
  • Fully automatic mesh refinement based on any relevant problem variables
  • Fully automatic time-step refinement for transient problems
  • Contour plots of pressure/head
  • Advanced visualization including pathlines, pathlines, cut-aways, isosurfaces, and animation
  • Integrate mass flux across irregular vertical walls or surfaces




SVFlux 3D Simulation Features

  • Steady-state analysis.
  • Transient (time dependant) analysis.
  • Saturated or unsaturated analysis.
  • Flux sections may be placed on internal or external irregular surfaces and/or extruded walls of the problem.
  • Water flow with time may be tracked across flux sections.
  • Finite element analysis by the Galerkin method. The solver uses advanced features such as preconditioning of the convergence matrix as well as staging and automatic mesh refinement to achieve solutions with greater stability than any other software currently available.
  • Anisotropic analysis.
  • Anisotropic analysis at any angle (version 3.0). 3D anisotropy is defined by two angles.
  • Fully automatic mesh generation. Mesh generation may be limited by a maximum number of nodes or by a maximum specified error.
  • Fully automatic mesh refinement. Mesh refinement is based on the relative error of the governing equation and therefore automatically locates critical zones. In a transient analysis a different mesh is generated for each time step. SVFlux is currently the only groundwater package in the world to offer this feature.
  • Fully automatic time-step refinement for transient analysis. The time-steps selected by the solver are independant of the plotting intervals selected by the user.
  • Add contaminant transport analysis with our ChemFlux software.
  • Perched or multiple water tables may be incorporated.

Outflow

Pinchout

Dam Design

Mine Site




SVFlux 3D Model Design Features

  • CAD style plan view entry of geometry.
  • Model built as stacked surfaces.
  • Each surface may have multiple regions defined. Regions are extruded between the surfaces on which they are placed.
  • Grid, snapping, and object snapping features available.
  • Zooming, panning features available.
  • Graphically assign boundary conditions.
  • Head or flux boundary conditions may be specified as contants or free-form equations. Free form equations may be specified as a function of position or time (i.e., h=30+exp(t)*2.5)
  • Tables of net flux data may be cut and pasted into SVFlux to act as boundary conditions. This feature allows modeling of flux boundaries where weather station data is available. The z component of vertical flux boundaries may be isolated to simulate precipitation on steep irregular surfaces.
  • Problems may be entered in Metric or Imperial units
  • All aspects of all models are stored in a database which may be placed on a server. Multiple users may be "plugged in" to the same modeling database.
  • Import soil-water characteristic curve or permeability data from the SoilVision software. The SoilVision database contains laboratory data on over 6000 soil-water characteristic curves, over 2500 ksat values, and over 400 unsaturated permeability curves.
  • Region geometry may be cut and pasted into the model from tabular sources such as Excel.
  • Initial water table for a transient analysis may be entered as a surface or imported as heads from a steady-state analysis.
  • A central database of soil properties for all entered seepage problems is maintained. New problems may draw soils from existing problems.
  • Problem geometry may be imported from existing problems.
  • Existing problems may be saved under a new name in the database to allow quick generation of multiple scenarios.
  • Colors or patterns of soil regions may be specified.
  • Manual entry of region coordinate points.
  • Lines (extruded into walls) may be added to model to force mesh refinement along a linear object.
  • Internal boundary conditions may be set or node density specified along internal wall object.
  • Sketch text or lines may be added to the model design.
  • Graphical model design may be exported as a WMF or DXF file and/or printed.
  • Bitmap or DXF geometry may be imported and layered behind model geometry to simplify model creation (version 3.0).




SVFlux 3D Output Features without TecPlot Module

  • Color 2D contour plots of head, pore-water pressure, kx, ky, water storage, and volumetric water content may be produced at any X, Y, or Z plane section through the problem.
  • Plots may be zoomed to isolate any region of interest.
  • 2D Vector plots of gradients may be produced at any X, Y, or Z plane section through the problem.
  • Volume or water volume integrals may be computed over the entire problem or any particular region of interest.
  • Mesh plots track general mesh refinement.
  • Plots of value versus time may be generated at any coordinate for the following values: head, pore-water pressure, kx, ky, volumetric water content, and water storage.
  • Surface plots of any 2D variable over the problem region may be produced.
  • Graphical output may be exported to BMP or PNG formats.

SVFlux 3D Output Features with TecPlot Module

  • Color visualization of 3D mesh is available.
  • Transparency allows visualization of internal mesh and/or isosurfaces.
  • Cutaways allow user to view internal sections of the model.
  • Color 3D contour plots of head, pore-water pressure, kx, ky, water storage, and volumetric water content may be placed on any face of the model. Custom color shadings may be specified.
  • Isosurfaces may be plotted.
  • Overlaying of plots may be performed. For example, vectors may be shown in Region 1 while contours of head may be shown in Region 2.
  • 3D Vector plots of gradients.
  • Text and line art may be added to output.
  • Graphical output may be exported to WMF, DXF, JPG, or BMP formats.
  • Plotting of 3D streamtraces.
  • Animation of 2D or 3D transient results.
  • Overlay of DXF files.




SVFlux 3D Applications

  • Unconfined flow.
  • Infiltration / precipitation.
  • Design of earth covers.
  • Pond infiltration.
  • Excess pore-water pressure build-up and dissipation.
  • Seepage modeling involving geomembranes.
  • Water and contaminant movement (with ChemFlux) in mine tailings and leach pads.
  • Time-dependant water flow.
  • Water (and contaminant) flow in the unsaturated (vadose) zone.
  • Aquifer recharge.
  • Dam seepage.

SVFlux 3D Documentation

The following manuals document the operation of the SVFlux software. The design of the software makes it simple to learn and use. Most users are able to learn how to use the software effectively to create 2D problems within 30-60 minutes.

  • User's manual - documents specific operation of software.
  • Tutorial manual - Step-by-step instructions guides the user through creation of 2D and 3D problems.
  • Theory manual - documents the theory of the governing partial differential equations used in the solution of the seepage problem.
  • Verification manual - benchmarks the SVFlux software against typical seepage problems published in texts, journal papers, or manuals from other software packages.




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