Parent Command
> OBSERVATION

Subcommand
>>> MATERIAL
>>> MODEL

Description
This command selects as an observation type the total mass of phase iphase or component icomp. This observation type refers either to the entire model domain or to the subdomain defined by a list of rock types. Component number icomp or component name comp_name, and phase number iphase or phase name phase_name depend on the EOS module being used. They are listed in the header of the iTOUGH2 output file, and can be specified either on the command line or using the two subcommands >>>> COMPONENT and >>>> PHASE, respectively. If keyword CHANGE is present, the change of the total mass since data initialization is computed.

Example
> OBSERVATION
>> CHANGE of TOTAL MASS in place since beginning of simulation
>>> entire MODEL
>>>> ANNOTATION : Total brine mass injected
>>>> BRINE is the COMPONENT of interest
>>>> FACTOR : 1.0E-03 [g] - [kg]
>>>> DATA on FILE : brine.dat
>>>> DEVIATION : 10.0 [g]
<<<<
<<<

>> TOTAL MASS of PHASE: 2 (= net weight of laboratory column)
>>> MATERIAL domains : FRACT MATRI
>>>> ANNOTATION : Mass of liquid (water and brine)
>>>> DATA on FILE : liquid.dat
>>>> DEVIATION : 0.01 [kg]
<<<
<<

See Also
>> VOLUME