By Wen-Hsing Chiang

This ebook and CD-ROM provide a whole simulation procedure for modeling groundwater circulate and delivery techniques. The better half full-version software program (PMWIN) comes with a qualified graphical user-interface, supported types and courses and several beneficial modeling instruments. instruments contain a Presentation software, a outcome Extractor, a box Interpolator, a box Generator, a Water funds Calculator and a photo Viewer. e-book and CD-ROM are designated at beginner and skilled groundwater modelers.

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Additional info for 3D-Groundwater Modeling with PMWIN: A Simulation System for Modeling Groundwater Flow and Transport Processes

Example text

Move the grid cursor to the desired cell by using the arrow keys or by clicking the mouse on the desired position. 3. Press the right mouse button once. The Grid Editor shows the Grid Size dialog box (Fig. 4). 4. In the dialog box, type new values, then click OK. 2 The Data Editor 15 Fig. 4. 2 The Data Editor The Data Editor is used to assign parameter values to the model. To start the Data Editor, select a corresponding item from the Grid, Parameters or Models menus. For example, select Parameters | Porosity to assign porosity values to the model.

The Cell Information dialog box Fig. 9. The Search and Modify Cell Values dialog box • Shift + left mouse button or Ctrl+Q. Open the Cell Information dialog box (Fig. 8), which displays the user-specified data of the cell pointed to by the grid cursor. • Ctrl + left mouse button. Open the Search and Modify Cell Values dialog box (Fig. 9). This allows you to display all cells that have a value located within the Search Range (to be specified). According to the user specified Value and the operation Options, you can easily modify the cell values.

Density-effect can only be applied to layers of type 0 or 2. 1 for more information about the Density package. 1 IBOUND (MODFLOW) The flow model MODFLOW requires an IBOUND array, which contains a code for each model cell. A positive value in the IBOUND array defines an active cell (the hydraulic head is computed), a negative value defines a constant head or fixed head cell (the hydraulic head is kept constant at a given value throughout the flow simulation) and the value 0 defines an inactive cell (no flow takes place within the cell).

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