Waterloo Hydrogeologic, PART OF NOVA METRIX LLC

Waterloo HydrogeologicVersion Modflow Surfact -Compatible Hydrogeologic Software

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MODFLOW-SURFACT is one of the most comprehensive flow and transport models available. Built around the MODFLOW code, MODFLOW-SURFACT includes advanced computational modules that are based on robust, efficient, mass-conserving algorithms making it faster and more accurate than its transport modeling counterparts.

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  • Handles complete desaturation and resaturation of grid cells
  • Accurate delineation and tracking of water table position, taking into account flow in the unsaturated zone, delayed yield, and vertical flow components.
  • Automatic and correct redistribution of the total flow rate of a well screened through multiple model layers when the upper cell(s) are pumped dry.
  • Accommodation of wellbore storage and overpumped wells and prevents water table buildup beyond a specified recharge-ponding elevation.
  • Adaptive time-stepping schemes automatically adjusts time-step size to the non-linearities of the system to optimize the solution stability.
  • Capability of modeling unsaturated water or air movement.
  • Enhanced Newton-Raphson linearization option increases robustness for unconfined and/or unsaturated flow conditions.