User's guide of Proceessing Modflow 5.0

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222 Processing Modflow is deactived by using the Environment Options dialog box. 4. You may use File < Save Plot As… or File < Print Plot... to save or print the plot. 5. Leave the Presentation by File < Leave Editor < Yes Step 8: Transient Flow Simulation Initial Hydraulic Head Fig. 6.4 Steady-state head distribution It is now time to perform the transient simulations with the wet season recharge (120 days) and dry season pumping (240 days). The hydraulic heads resulting from the steady state simulation are used as the starting heads for the transient analysis. < To set the steady state heads as the starting values for the simulation 1. Select Parameters < Initial Hydraulic Heads 2. Open the Browse Matrix dialog box by Value < Matrix... 3. In the Browse Matrix dialog box select Load to open the Load Matrix dialog box. 4. Click on to open the Load Matrix dialog box and select the appropriate file to load, 6.1.1 Tutorial 1 - Unconfined Aquifer System with Recharge
Processing Modflow 223 in this case it is T1SS.DAT and click OK. 5. Exit the Load Matrix dialog box by clicking on OK. 6. The data will appear in the Browse Matrix dialog box, click on OK to exit this dialog box. The data is now loaded. 7. Leave the Data Editor by File < Leave Editor < Yes Time Paramters We now need to change from a steady state simulation to a transient simulation. In the transient simulation there are two stress periods, one of 240 days when pumping is occurring and no recharge and the other of 120 days when there is recharge only. It is possible to have different conditions for each stress period as will be demonstrated below. < To change to a transient simulation 1. Select Parameters < Time... to open the Time Parameters dialog box. 2. Change the model to transient by clicking on Transient in the Simulation Flow Type box. 3. Activate the second period by checking the Active box in the second row of the table. 4. Change the period length and time steps such that For period 1: Period Length = 240; Time Step = 12 For period 2: Period Length = 120; Time Step = 6 5. Click OK to exit the Time Parameters dialog box. Pumping rates Now we need to set the pumping rate for each well during stress period 1. < To set the pumping rate 1. Select Models < MODFLOW < Well 2. At each of the wells (marked by a little shaded box on the DXF Map) click the left mouse button to select the cell and then the right mouse button to set the pumping rate to -3888 in the Cell Value dialog box. This pumping rate is equivalent to 45 l/s, the negative sign means that water is being extracted from the system being modelled. A recharge well would have a positive sign. 3. Exit the Data Editor by File < Leave Editor Upon leaving you are presented with a Temporal Data dialog box, this allows you to select and edit the data so that different values can apply during different Stress Periods. 4. Select Period 2 and click on Edit Data. The status bar displays Period 2 indicating that you 6.1.1 Tutorial 1 - Unconfined Aquifer System with Recharge
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Processing Modflow A Simulation Sys
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3.6.6 UCODE (Inverse Modeling) . ..
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Preface Welcome to Processing Modfl
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Processing Modflow 1 1. Introductio
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Processing Modflow 3 the three-dime
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Processing Modflow 5 Online Help Th
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Processing Modflow 7 capture zone o
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Processing Modflow 9 The first and
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Processing Modflow 11 Now, you must
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Processing Modflow 13 2. Repeat the
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Processing Modflow 15 2. Choose Lea
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Processing Modflow 17 simulation is
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Processing Modflow 19 steps 3 to 5
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Processing Modflow 21 Table 2.4 Out
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Processing Modflow 23 results and u
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Processing Modflow 25 Fig. 2.12 The
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Processing Modflow 27 fields in the
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Processing Modflow 31 2.2 Simulatio
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Processing Modflow 33 2. Click OK t
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Processing Modflow 37 Fig. 2.27 Sim
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Processing Modflow 39 < To assign t
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Processing Modflow 43 Fig. 2.35 Con
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Processing Modflow 47 Note that PMW
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Processing Modflow 49 the model dat
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Processing Modflow 51 PMWIN will cr
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Processing Modflow 53 Table 3.1 An
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Processing Modflow 55 data and clic
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Processing Modflow 61 3.2.2 The Zon
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Processing Modflow 67 - Print: Prin
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Processing Modflow 69 principal axe
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Processing Modflow 71 Calculated, P
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Processing Modflow 73 3.5 The Param
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Processing Modflow 75 steady state
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Processing Modflow 77 Vertical Hydr
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Processing Modflow 79 3.6 The Model
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Processing Modflow 81 RET ' RETM h>
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Processing Modflow 83 boundaries be
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Processing Modflow 85 For a confine
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Processing Modflow 87 1. Recharge i
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Processing Modflow 89 Leakage betwe
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Processing Modflow 91 For the case
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Processing Modflow 93 < Parameter N
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Processing Modflow 95 MODFLOW < Tim
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Processing Modflow 97 MODFLOW < Wet
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Processing Modflow 99 well cell etc
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Processing Modflow 101 MODFLOW < So
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Processing Modflow 103 < Max. band
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Processing Modflow 105 < Allowed It
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Processing Modflow 107 MODFLOW < Ru
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Processing Modflow 109 Table 3.4 Ve
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Processing Modflow 111 MOC3D < Init
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Processing Modflow 113 MOC3D < Disp
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Processing Modflow 115 MOC3D < Stro
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Processing Modflow 117 Table 3.6 Na
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Processing Modflow 119 Fig. 3.40 Th
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Processing Modflow 121 higher numbe
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Processing Modflow 123 )t # Fixed p
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Processing Modflow 125 MT3D < Chemi
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Processing Modflow 127 beginning of
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Processing Modflow 129 < Misc.: - C
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Processing Modflow 131 3.6.4 MT3DMS
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Processing Modflow 133 < Weighting
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Processing Modflow 135 is infinite
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Processing Modflow 137 (ITER1): The
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Processing Modflow 139 3.6.5 PEST (
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Processing Modflow 141 define the e
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Processing Modflow 143 while s and
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Processing Modflow 145 - DERINCMUL:
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Processing Modflow 147 where N is t
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Processing Modflow 149 course of an
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Processing Modflow 151 PEST (Invers
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Processing Modflow 153 3.6.6 UCODE
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Processing Modflow 155 To define a
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Processing Modflow 157 < Options -
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Processing Modflow 159 Fig. 3.57 Th
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Processing Modflow 161 < To load an
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Processing Modflow 163 Use the Sear
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Processing Modflow 165 < Appearance
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Processing Modflow 167 - Ignore ina
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Processing Modflow 169 Maps... Fig.
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Page 183 and 184: Processing Modflow 177 all velocity
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Page 217 and 218: Processing Modflow 211 6. Examples
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Processing Modflow 273 Fig. 6.41 Co
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Processing Modflow 275 6.5 Geotechn
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Processing Modflow 277 6.5.2 Flow N
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Processing Modflow 279 6.5.3 Seepag
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Processing Modflow 281 Fig. 6.51 Ca
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Processing Modflow 283 3 penetrated
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Processing Modflow 285 6.5.5 Compac
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Processing Modflow 287 Fig. 6.57 Di
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Processing Modflow 289 irreversible
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Processing Modflow 291 (Rausch, 199
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Processing Modflow 293 6.6.3 Benchm
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Processing Modflow 295 6.7 Miscella
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Processing Modflow 297 Fig. 6.65 Co
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Processing Modflow 299 6.7.2 An Exa
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Processing Modflow 301 7. Appendice
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Processing Modflow 303 COLOR is the
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Processing Modflow 305 The unit of
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Processing Modflow 307 Appendix 3:
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Processing Modflow 309 PEST Instruc
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Processing Modflow 311 YLZ ZONE Spe
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Processing Modflow 313 STC CBC Stre
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Processing Modflow 315 961...990 ZO
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Processing Modflow 317 Table 7.2 IU
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Processing Modflow 319 8. Reference
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Processing Modflow 321 Franke, R. (
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Processing Modflow 323 Leake, S.A.
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Processing Modflow 325 Shepard, D.,
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