MOMOP

MOMOP describes additional options as shown in Table 17.

Free format for 26 parameters. Or Format(26I1)

MOP2(I), I = 1,26

Table 17. More Options

MOP2	Value	Description
1	0, 1 2	Minimum number of Newton-Raphson iterations Allow convergence in a single Newton-Raphson iteration Perform at least two iterations; primary variables are always updated.
2		Void
3		Void
4	0 >0	Vapor pressure reduction No vapor pressure reduction at low liquid saturation Reduces vapor pressure for Sl < 0.02 to prevent liquid disappearance by evaporation (only certain EOS modules)
5	0 >0	Active Fracture Model (Appendix C) Active Fracture Model applied to liquid phase only Active Fracture Model applied to all phases
6	0 >0	Leverett scaling of capillary pressure No Leverett scaling Rescale capillary pressure: if element-specific permeabilities are specified
7		Void
8		Void
9	0 >0	Time stepping after time-step reduction to honor printout time Continue with time step imposed by forced time-step reduction Continue with time step used before forced time-step reduction (may conflict with time-step size for time-dependent honoring source/sink or first-type boundary.)
10	0 1 2	Writing SAVE file Write SAVE file only at the end of a forward run Write SAVE file after each printout time Write separate SAVE files after each printout time
11	0 1 2	Water properties International Formulation Committee (1967) IAPWS-IF97 IAPWS-95
12	0 >0	Enthalpy of liquid water Potential energy not included in enthalpy of liquid water Potential energy included in enthalpy of all phases (Stauffer et al., 2014)
13	0 >0	Adjustment of Newton-Raphson increment weighting No adjustment Reduce WNR by MOP2(13) percent if Newton-Raphson iterations oscillate and time step is reduced because ITER=NOITE
14		Void
15	0 >0	Porosity used for calculation of rock energy content Use porosity of block ROCKS; this assumes that the porosities provided in block INCON were the result of a pore compressibility/expansivity calculation; the “original” porosity from block ROCKS is used to compensate for equivalent rock-grain density changes. Use porosity from block INCON; this assumes that these porosities were not the result from a pore compressibility/expansivity calculation; changes in rock-grain density due to pore compressibility/expansivity are not compensated.
16		Void
17	0 1	Variables printed on FOFT files (time series) Print variables according to input data in block FOFT Print variables according to input data in block OUTPU
18	0 1	Adjustment of time step size to coincide with transient boundary times. No adjustment Do the adjustment
19	0 1	Use anisotropic permeability values kx, ky and kz of rocks to construct the diagonal of the permeability tensor. No Yes
20		Void
21	0 >0	Honoring generation times in blocks TIMBC. Time stepping ignores times specified in block TIMBC Time steps adjusted to match times in block TIMBC
22		Void
23		Void
24		Void
25	0 1	Check mesh for duplicate element names Do not check the mesh Check the mesh
26	0 1 2 3	Printout format Both traditional output and CSV formats CSV/TECPLOT format (types separated; times combined) CSV/TECPLOT format (types separated; times separated) CSV/TECPLOT format (types combined; times combined)

In TOUGH4, input with keyword "MOMOP" becomes obsolete. Its Input can be replaced by input of IE array through keyword "SELEC". if any element in IE(101)-IE(126) is not 0, it will replace corresponding element in MOP2(1)-MOP2(26),

Used in: All EOS modules