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18) We have defined the P flux 0 at X- boundary. Now Proceed further to specify the boundary condition at remaining three faces.

19) For X+, Y+ we will apply same boundary condition as for X-. So change only entire boundary to X+ and Y+ and click Apply every time.

20) For Y- everything will remain same as above except the boundary condition type as Value and Entire boundary at Y-. Click "Apply".

21) Click "Advanced.." on Initial & Boundary Conditions dialog window to reach Advanced Initial & Boundary Conditions dialog window (see Fig 2.5)

Fig - 2.5: Advanced Initial & Boundary Conditions dialog

22) Click "Gravity >>". A dialog window appears. Here we will specify the normalized value of gravity. Enter the value as shown in fig 2.6 and click "Apply".

Fig - 2.6: Gravity dialog window

23) Close the Advanced Initial & Boundary Conditions dialog box by clicking on "Close".

This concludes the initial and boundary conditions for the problem in hand.

24) Click "Next" to go to the "Fluid Properties & Constants". For the present problem we will not specify anything from this section.

25) Click "Next >" to reach "Solid Matrix Properties" dialog window as shown on fig 2.7

Fig - 2.7: Solid Matrix Properties dialog window

26) Select "Hydraulic Properties >>" from Solid Matrix Properties dialog window and enter the values as follows

1. Matrix Compressibility as 0.0.
2. Hydraulic X- components Kx as 0.00112 and Hydraulic components Ky as 0.00112.
3. Click "Apply".

27) Now go to "Advanced" button available on Solid Matrix Properties dialog window. (See fig 2.8)

Fig - 2.8: Advanced Solid Matrix Properties dialog.

28) Select "Property Interpretation >>". A dialog window appears. Choose the option as:

1. Compute diffusion coefficient as Geometric mean of the two nearest grid node values.
2. Select dependent variable as P.
3. Click "Apply". (see fig 2.9)

Fig - 2.9: Property Interpretation dialog window

29) Now go to "Multiphase Characteristics >>" option. A dialog window appears as shown in fig 3.0

Fig - 3.0: Dialog window for multiphase characteristics.

30) Click "Saturation in terms of Capillary Pressure >>" and enter the value as:

1. Select Saturation as "Exponential".
2. Enter the value of empirical constants A and B as 1.0 and 0.1258 respectively. (see fig 3.1).
3. Leave other values as default.



Fig - 3.1: Saturation Pressure dialog window

4. Click "Apply".

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