EOS1
Last updated
Last updated
Table 19 Primary Variables of EOS1
Phase Conditions
PrV1
PrV2
PrV3
PrV4
PrV5
PrV6
Gas
Pg
Xw2
Xtr1
Xtr2
Xtr3
T
Aqueous
Pa
Xw2
Xtr1
Xtr2
Xtr3
T
Two-Phase
Pg
Xw2
Xtr1
Xtr2
Xtr3
Sg
Supercritical
dw
Xw2
Xtr1
Xtr2
Xtr3
T
The parameters used as default initial conditions are the identical set of parameters of primary variables. Table 19 shows the parameters of default initial conditions/primary variables for EOS1 with three tracers. In the table, Pg and Pa are pressure for gas and aqueous phase respectively. T is temperature. Xtrn is tracer n mass fraction in the user specified phase (seeTracerInPhase in ). Xw2 is water2 mass fraction in existing phase. For two-phase flow, the water2 mass fraction is assumed to be the same in both phases. Sg is gas saturation. dw is the water density in supercritical condition. Xw2 and Xtr1-Xtr3 are optional. They are required only when the corresponding mass component exists in the model.
User can use alternative set parameters as the initial conditions through defining initCType in input data record MODDE.1 or command line –i <parameter>
initCType =
“EOS1” reading the TOUGH3/EOS1 input files.
The TOUGH3/EOS1 initial conditions provided in the input file will be transformed internally into TOUGH4/EOS1 initial conditions.