Command line tool

Synopsis

swEOS [ -D [ dimension ]] [ -V [ variables ] ] [ -P [\(p_{bar}\)] ] [ -T [\(T_{^{\circ}C}\)] ] [ -X [\(x_{wt. NaCl}\)] ] [ -H [\(h_{kJ/kg}\)] ] [ -R min1/delta1/max1/min2/delta2/max2/min3/delta3/max3 ] [ -G [inputfile] ] [ -O [outputfile] ] [ -t [threads] ] [ -n ] [ -h ]

Note: No space is allowed between the option flag and the associated arguments.

Description

swEOS can calculate phase relations and thermodynamic properties of salt water in single point, one-dimension, two-dimension and three-dimension, respectively.

Required Arguments

-D [ dimension ]

Sets dimension. This is the first key option, the available arguments are 0, 1, 2 and 3.

• 0 means single point calculation. If -D is set to 0, the -V option only support PTX or PHX. In addition, the pressure, salinity, temperature or enthalpy must be specified by -P, -X, -T or -H option, respectively.

• 1 means only one variable changes and the others are set to fixed value. If -D is set to 1, the -V option only support P, T, X, or H. The range of variable specified by -V option is set by -R option. And the other variables are set to fixed value by -P, -X, -T or -H options. The result will be saved to file. If the output file name is not specified by -O option, swEOS will use the default file name and print the file path in terminal.

• 2 means change two variables and fixed the third variable. Similar to -D1 case.

• 3 means no fixed variable. Similar to -D1 case.

-V [ variables ]

Sets variables accroding to -D option. This is the second key option, the available arguments are PTX, PHX, P, T, X, H, PT, PX, TX, PH and HX.

• PTX, if argument of -D option is 0 (single point or multiple points case), then the pressure, temperature and salinity is set by -P, -T and -X option, respectively. While if argument of -D is 3 (three dimension case), the range of pressure, temperature and salinity must be specified by -R option in the same order of argument of -V option. Therefore, for the same calculation, -V option can be PTX, PXT, TPX, TXP, XPT and XTP unless you set -R option in the save order. For example, -VXPT -R0/0.1/1/5/1/400/0/1/100 means salinity in range of [0, 1] with interval of 0.1, pressure in range of [5, 400] bar with interval of 1 bar, temperature in range of [0, 100] \(^{\circ}\text{C}\) with interval 1 \(^{\circ}\text{C}\) . Alternately, you can also do the same thing using command of -V TPX -R 0/1/100/5/1/400/0/0.1/1 .

• PHX, similar to PTX, it just replaced temperature with enthalpy.

• T. This is only valid when argument of -D option is 1 (one dimension case). It means temperature is the independent variable, its range is specified by -R option, e.g. -R0/1/100 means temperature in range of [0, 100] \(^{\circ}\text{C}\) with interval of 1 \(^{\circ}\text{C}\), pressure and salinity are fixed by -P and -X option, respectively. In addition, the output file name has to be specified by -O option, will write as csv file format. P, X, H similar to T.

• PT. This is only valid when argument of -D option is set to 2 (two dimension case). It means pressure and temperature are the independent variable, their range are specified by -R option, e.g. -R5/1/500/0/1/100 means temperature in range of [0, 100] \(^{\circ}\text{C}\) with interval of 1 \(^{\circ}\text{C}\), pressure in range of [5, 500] bar with interval of 1 bar. Salinity is the fixed variable and the fixed value is specified by -X option. Note that it doesn’t matter what the order of variable follow -V option, e.g. -VPT and -VTP are all valid, but the order of range follow -R option matters, it must be the same order with -V option. For example, -VPT -R5/1/500/0/100 and -VTP -R0/1/100/5/1/500 are equivalent. Of course, you also have to specify output file by -O option. PX, TX, PH, HX are similar with PT.

-P [ pressure ]

Sets fixed pressure value, it should be a float or integer number. The unit is bar.

-T [ temperature ]

Sets fixed temperature value, it should be a float or integer number. The unit is \(^{\circ}\text{C}\).

-X [ salinity ]

Sets fixed salinity value, it should be a float or integer number. The unit is \(wt. NaCl\).

-H [ enthalpy ]

Sets fixed enthalpy value, it should be a float or integer number.

-R [ min/delta/max ]

Sets range and interval of independent variable(s), -R option must correspond to -V and -D options. For example, -D1 -VT -R0/1/100 , -D2 -VTX -R0/1/100/0/0.1/0.8 , -D3 -VTXP -R0/1/100/0/0.1/0.8/5/1/500 .

-G [ inputfile ]

Sets input file for multiple points calculation, the input file with three columns with delimiter of space or table( \t ) correspondint to -V option. For example, -D0 -VPTX -Ginput.txt means calculate EOS of some points, independent variables of each point are pressure, temperature and salinity which are listed in input.txt as belows

PTX

Listing 3 Input file for multi-points calculation, three columns are p(bar) T(deg.C) X(wt% NaCl)

316 10      0.032
316 11      0.032
316 12      0.032
316 13      0.032
316 14      0.032
316 15      0.032
316 16      0.032
316 17      0.032
316 18      0.032
316 19      0.032
316 20      0.032
316 21      0.032
316 22      0.032
316 23      0.032

PHX

Listing 4 Input file for multi-points calculation, three columns are p(bar) H(kJ/kg) X(wt% NaCl)

316     74.3015 0.032
316     78.2695 0.032
316     82.2389 0.032
316     86.2098 0.032
316     90.1822 0.032
316     94.1561 0.032
316     98.1316 0.032
316     102.109 0.032
316     106.087 0.032
316     110.067 0.032
316     114.049 0.032
316     118.031 0.032
316     122.016 0.032
316     126.001 0.032
316     126.001 0.032

-O [ outputfile ]

Sets output file name for one, two and three-dimensional calculation. The supported file format for 1D is csv, for 2D and 3D can be one of txt(delimiter is \t ), csv(delimiter is , ) and vtk. Because temperature, pressure and salinity have different scaling, if open the vtk file directlly by paraview, you can not see anything in salinity dimension. Therefore there is a python script generated by swEOS can deal with the scaling issue automatically. You just need to type a command in terminal to visualize the result. e.g. paraview --script=test3D.vtk.py .

-t [ thread ]

Sets number of threads for parallel computing.

-n

If need to normalize the coordinates of result in vtk file, it is only valid in 3D calculation. Because the coordinates of the results are (P,T,X), (P,H,X), … with different scale, if use paraview to visualize the result, one have to deal with the coordinate scale. One option is set using -n to normalize the coordinate. Otherwise, a python script will be generated by swEOS automatically, one can use this python script to visualize results (see also Three-dimensional calculation).

3D calculation using 8 threads, H in [100, 600] kJ/kg, P in [10, 500] bar, X in [0.001, 1]
[################################]100%
Writing results to file ...
Results have been saved to file: PTX.vtk
Paraview-python script is generated as : PTX.vtk.py
You can use command of  paraview --script=PTX.vtk.py to visualize result in paraview

-h

Print a short message about the syntax of the command.

Examples

Single point calculation

swEOS -D 0 -V PXT -P 316 -T 100 -X 0.032
swEOS -D 0 -V PXH -H 438 -P 316 -X 0.032

Multi-points calculation

swEOS -D 0 -V PHX -G phx.txt -O PHX_0D.csv
swEOS -D 0 -V PTX -G ptx.txt -O PTX_0D.csv

Usage animation

Input: PTX

316 10      0.032
316 11      0.032
316 12      0.032
316 13      0.032
316 14      0.032
316 15      0.032
316 16      0.032
316 17      0.032
316 18      0.032
316 19      0.032
316 20      0.032
316 21      0.032
316 22      0.032
316 23      0.032

Result: PTX

Table 1 Calculation result with PTX input file

T(C)	P(bar)	X	Phase Index	Phase Region	Bulk density(kg/m3)	Liquid density(kg/m3)	Vapour density(kg/m3)	Halite density(kg/m3)	Bulk enthalpy(kJ/kg)	Liquid enthalpy(kJ/kg)	Vapour enthalpy(kJ/kg)	Halite enthalpy(kJ/kg)	Liquid Saturation	Vapour Saturation	Halite Saturation	Liquid viscosity	Vapour viscosity	Liquid salinity	Vapour salinity
10	316	0.032	0	Single phase(Liquid)	1036.03	1036.03	0	0	74.3015	74.3015	0	0	1	0	0	0.00139265	0	0.032	0
11	316	0.032	0	Single phase(Liquid)	1035.81	1035.81	0	0	78.2695	78.2695	0	0	1	0	0	0.00135602	0	0.032	0
12	316	0.032	0	Single phase(Liquid)	1035.59	1035.59	0	0	82.2389	82.2389	0	0	1	0	0	0.00132091	0	0.032	0
13	316	0.032	0	Single phase(Liquid)	1035.35	1035.35	0	0	86.2098	86.2098	0	0	1	0	0	0.00128723	0	0.032	0
14	316	0.032	0	Single phase(Liquid)	1035.11	1035.11	0	0	90.1822	90.1822	0	0	1	0	0	0.00125491	0	0.032	0
15	316	0.032	0	Single phase(Liquid)	1034.86	1034.86	0	0	94.1561	94.1561	0	0	1	0	0	0.00122386	0	0.032	0
16	316	0.032	0	Single phase(Liquid)	1034.61	1034.61	0	0	98.1316	98.1316	0	0	1	0	0	0.00119402	0	0.032	0
17	316	0.032	0	Single phase(Liquid)	1034.34	1034.34	0	0	102.109	102.109	0	0	1	0	0	0.00116533	0	0.032	0
18	316	0.032	0	Single phase(Liquid)	1034.07	1034.07	0	0	106.087	106.087	0	0	1	0	0	0.00113773	0	0.032	0
19	316	0.032	0	Single phase(Liquid)	1033.79	1033.79	0	0	110.067	110.067	0	0	1	0	0	0.00111117	0	0.032	0
20	316	0.032	0	Single phase(Liquid)	1033.51	1033.51	0	0	114.049	114.049	0	0	1	0	0	0.00108558	0	0.032	0
21	316	0.032	0	Single phase(Liquid)	1033.21	1033.21	0	0	118.031	118.031	0	0	1	0	0	0.00106093	0	0.032	0
22	316	0.032	0	Single phase(Liquid)	1032.91	1032.91	0	0	122.016	122.016	0	0	1	0	0	0.00103717	0	0.032	0
23	316	0.032	0	Single phase(Liquid)	1032.61	1032.61	0	0	126.001	126.001	0	0	1	0	0	0.00101425	0	0.032	0
23	316	0.032	0	Single phase(Liquid)	1032.61	1032.61	0	0	126.001	126.001	0	0	1	0	0	0.00101425	0	0.032	0

Input: PHX

316 74.3015 0.032
316 78.2695 0.032
316 82.2389 0.032
316 86.2098 0.032
316 90.1822 0.032
316 94.1561 0.032
316 98.1316 0.032
316 102.109 0.032
316 106.087 0.032
316 110.067 0.032
316 114.049 0.032
316 118.031 0.032
316 122.016 0.032
316 126.001 0.032
316 126.001 0.032

Result: PHX

Table 2 Calculation result with PHX input file

T(C)	P(bar)	X	Phase Index	Phase Region	Bulk density(kg/m3)	Liquid density(kg/m3)	Vapour density(kg/m3)	Halite density(kg/m3)	Bulk enthalpy(kJ/kg)	Liquid enthalpy(kJ/kg)	Vapour enthalpy(kJ/kg)	Halite enthalpy(kJ/kg)	Liquid Saturation	Vapour Saturation	Halite Saturation	Liquid viscosity	Vapour viscosity	Liquid salinity	Vapour salinity
9.99903	316	0.032	0	Single phase(Liquid)	1036.03	1036.03	0	0	74.2976	74.2976	0	0	1	0	0	0.00139268	0	0.032	0
10.999	316	0.032	0	Single phase(Liquid)	1035.81	1035.81	0	0	78.2653	78.2653	0	0	1	0	0	0.00135606	0	0.032	0
11.9989	316	0.032	0	Single phase(Liquid)	1035.59	1035.59	0	0	82.2344	82.2344	0	0	1	0	0	0.00132095	0	0.032	0
12.9988	316	0.032	0	Single phase(Liquid)	1035.35	1035.35	0	0	86.2051	86.2051	0	0	1	0	0	0.00128727	0	0.032	0
13.9988	316	0.032	0	Single phase(Liquid)	1035.11	1035.11	0	0	90.1772	90.1772	0	0	1	0	0	0.00125495	0	0.032	0
14.9987	316	0.032	0	Single phase(Liquid)	1034.86	1034.86	0	0	94.1509	94.1509	0	0	1	0	0	0.0012239	0	0.032	0
15.9986	316	0.032	0	Single phase(Liquid)	1034.61	1034.61	0	0	98.1262	98.1262	0	0	1	0	0	0.00119406	0	0.032	0
16.9987	316	0.032	0	Single phase(Liquid)	1034.34	1034.34	0	0	102.103	102.103	0	0	1	0	0	0.00116537	0	0.032	0
17.9985	316	0.032	0	Single phase(Liquid)	1034.07	1034.07	0	0	106.081	106.081	0	0	1	0	0	0.00113777	0	0.032	0
18.9985	316	0.032	0	Single phase(Liquid)	1033.79	1033.79	0	0	110.061	110.061	0	0	1	0	0	0.00111121	0	0.032	0
19.9986	316	0.032	0	Single phase(Liquid)	1033.51	1033.51	0	0	114.043	114.043	0	0	1	0	0	0.00108562	0	0.032	0
20.9984	316	0.032	0	Single phase(Liquid)	1033.21	1033.21	0	0	118.025	118.025	0	0	1	0	0	0.00106097	0	0.032	0
21.9985	316	0.032	0	Single phase(Liquid)	1032.91	1032.91	0	0	122.01	122.01	0	0	1	0	0	0.00103721	0	0.032	0
22.9984	316	0.032	0	Single phase(Liquid)	1032.61	1032.61	0	0	125.995	125.995	0	0	1	0	0	0.00101429	0	0.032	0
22.9984	316	0.032	0	Single phase(Liquid)	1032.61	1032.61	0	0	125.995	125.995	0	0	1	0	0	0.00101429	0	0.032	0
22.9984	316	0.032	0	Single phase(Liquid)	1032.61	1032.61	0	0	125.995	125.995	0	0	1	0	0	0.00101429	0	0.032	0

One-dimensional calculation

swEOS -D 1 -V H -X 0.032 -P 399 -R 43/1/100 -O H_1D.csv
swEOS -D 1 -V T -X 0.032 -P 399 -R 0/1/100 -O T_1D.csv
swEOS -D 1 -V P -X 0.032 -T 100 -R 5/1/100 -O P_1D.csv
swEOS -D 1 -V X -T 100 -P 399 -R 0/0.001/1 -O X_1D.csv

Usage animation

Results: change T

Table 3 Fix P and X, change T

T(C)	P(bar)	X	Phase Index	Phase Region	Bulk density(kg/m3)	Liquid density(kg/m3)	Vapour density(kg/m3)	Halite density(kg/m3)	Bulk enthalpy(kJ/kg)	Liquid enthalpy(kJ/kg)	Vapour enthalpy(kJ/kg)	Halite enthalpy(kJ/kg)	Liquid Saturation	Vapour Saturation	Halite Saturation	Liquid viscosity	Vapour viscosity	Liquid salinity	Vapour salinity
2	399	0.032	0	Single phase(Liquid)	1041.2	1041.2	0	0	50.6992	50.6992	0	0	1	0	0	0.00173781	0	0.032	0
3	399	0.032	0	Single phase(Liquid)	1041.03	1041.03	0	0	54.6358	54.6358	0	0	1	0	0	0.00168646	0	0.032	0
4	399	0.032	0	Single phase(Liquid)	1040.86	1040.86	0	0	58.5725	58.5725	0	0	1	0	0	0.00163743	0	0.032	0
5	399	0.032	0	Single phase(Liquid)	1040.68	1040.68	0	0	62.5098	62.5098	0	0	1	0	0	0.00159059	0	0.032	0
6	399	0.032	0	Single phase(Liquid)	1040.49	1040.49	0	0	66.4479	66.4479	0	0	1	0	0	0.00154583	0	0.032	0
…
96	399	0.032	0	Single phase(Liquid)	999.76	999.76	0	0	424.937	424.937	0	0	1	0	0	0.000335152	0	0.032	0
97	399	0.032	0	Single phase(Liquid)	999.113	999.113	0	0	428.951	428.951	0	0	1	0	0	0.000331626	0	0.032	0
98	399	0.032	0	Single phase(Liquid)	998.463	998.463	0	0	432.966	432.966	0	0	1	0	0	0.000328166	0	0.032	0
99	399	0.032	0	Single phase(Liquid)	997.809	997.809	0	0	436.981	436.981	0	0	1	0	0	0.000324769	0	0.032	0
100	399	0.032	0	Single phase(Liquid)	997.151	997.151	0	0	440.998	440.998	0	0	1	0	0	0.000321433	0	0.032	0

Results: change P

Table 4 Fix T and X, change P

T(C)	P(bar)	X	Phase Index	Phase Region	Bulk density(kg/m3)	Liquid density(kg/m3)	Vapour density(kg/m3)	Halite density(kg/m3)	Bulk enthalpy(kJ/kg)	Liquid enthalpy(kJ/kg)	Vapour enthalpy(kJ/kg)	Halite enthalpy(kJ/kg)	Liquid Saturation	Vapour Saturation	Halite Saturation	Liquid viscosity	Vapour viscosity	Liquid salinity	Vapour salinity
100	10	0.032	0	Single phase(Liquid)	980.288	980.288	0	0	410.864	410.864	0	0	1	0	0	0.000310974	0	0.032	0
100	11	0.032	0	Single phase(Liquid)	980.332	980.332	0	0	410.942	410.942	0	0	1	0	0	0.000311001	0	0.032	0
100	12	0.032	0	Single phase(Liquid)	980.376	980.376	0	0	411.019	411.019	0	0	1	0	0	0.000311028	0	0.032	0
100	13	0.032	0	Single phase(Liquid)	980.42	980.42	0	0	411.096	411.096	0	0	1	0	0	0.000311055	0	0.032	0
100	14	0.032	0	Single phase(Liquid)	980.465	980.465	0	0	411.173	411.173	0	0	1	0	0	0.000311081	0	0.032	0
…
100	95	0.032	0	Single phase(Liquid)	984.088	984.088	0	0	417.43	417.43	0	0	1	0	0	0.000313254	0	0.032	0
100	96	0.032	0	Single phase(Liquid)	984.133	984.133	0	0	417.508	417.508	0	0	1	0	0	0.00031328	0	0.032	0
100	97	0.032	0	Single phase(Liquid)	984.177	984.177	0	0	417.585	417.585	0	0	1	0	0	0.000313307	0	0.032	0
100	98	0.032	0	Single phase(Liquid)	984.222	984.222	0	0	417.662	417.662	0	0	1	0	0	0.000313334	0	0.032	0
100	99	0.032	0	Single phase(Liquid)	984.266	984.266	0	0	417.74	417.74	0	0	1	0	0	0.000313361	0	0.032	0
100	100	0.032	0	Single phase(Liquid)	984.311	984.311	0	0	417.817	417.817	0	0	1	0	0	0.000313388	0	0.032	0

Results: change X

Table 5 Fix P and T, change X

T(C)	P(bar)	X	Phase Index	Phase Region	Bulk density(kg/m3)	Liquid density(kg/m3)	Vapour density(kg/m3)	Halite density(kg/m3)	Bulk enthalpy(kJ/kg)	Liquid enthalpy(kJ/kg)	Vapour enthalpy(kJ/kg)	Halite enthalpy(kJ/kg)	Liquid Saturation	Vapour Saturation	Halite Saturation	Liquid viscosity	Vapour viscosity	Liquid salinity	Vapour salinity
100	399	0	0	Single phase(Liquid)	976.076	976.076	0	0	449.16	449.16	0	0	1	0	0	0.00029246	0	0	0
100	399	0.001	0	Single phase(Liquid)	976.729	976.729	0	0	448.896	448.896	0	0	1	0	0	0.00029413	0	0.001	0
100	399	0.002	0	Single phase(Liquid)	977.382	977.382	0	0	448.632	448.632	0	0	1	0	0	0.00029538	0	0.002	0
100	399	0.003	0	Single phase(Liquid)	978.036	978.036	0	0	448.369	448.369	0	0	1	0	0	0.000296513	0	0.003	0
…
100	399	0.994	3	Liquid + Halite	2133.81	1182.84	0	2148.37	109.823	391.953	0	107.446	0.0150758	0	0.984924	0.000564111	0	0.282037	0
100	399	0.995	3	Liquid + Halite	2136.23	1182.84	0	2148.37	109.427	391.953	0	107.446	0.0125774	0	0.987423	0.000564111	0	0.282037	0
100	399	0.996	3	Liquid + Halite	2138.64	1182.84	0	2148.37	109.031	391.953	0	107.446	0.0100733	0	0.989927	0.000564111	0	0.282037	0
100	399	0.997	3	Liquid + Halite	2141.07	1182.84	0	2148.37	108.634	391.953	0	107.446	0.00756352	0	0.992436	0.000564111	0	0.282037	0
100	399	0.998	3	Liquid + Halite	2143.5	1182.84	0	2148.37	108.238	391.953	0	107.446	0.00504806	0	0.994952	0.000564111	0	0.282037	0
100	399	0.999	3	Liquid + Halite	2145.93	1182.84	0	2148.37	107.842	391.953	0	107.446	0.0025269	0	0.997473	0.000564111	0	0.282037	0

Results: change H

Table 6 Fix P and X, change H

T(C)	P(bar)	X	Phase Index	Phase Region	Bulk density(kg/m3)	Liquid density(kg/m3)	Vapour density(kg/m3)	Halite density(kg/m3)	Bulk enthalpy(kJ/kg)	Liquid enthalpy(kJ/kg)	Vapour enthalpy(kJ/kg)	Halite enthalpy(kJ/kg)	Liquid Saturation	Vapour Saturation	Halite Saturation	Liquid viscosity	Vapour viscosity	Liquid salinity	Vapour salinity
1.00948	399	0.032	0	Single phase(Liquid)	1041.35	1041.35	0	0	46.7996	46.7996	0	0	1	0	0	0.00179106	0	0.032	0
1.26345	399	0.032	0	Single phase(Liquid)	1041.32	1041.32	0	0	47.7996	47.7996	0	0	1	0	0	0.00177718	0	0.032	0
1.51743	399	0.032	0	Single phase(Liquid)	1041.28	1041.28	0	0	48.7995	48.7995	0	0	1	0	0	0.00176346	0	0.032	0
1.77142	399	0.032	0	Single phase(Liquid)	1041.24	1041.24	0	0	49.7994	49.7994	0	0	1	0	0	0.00174989	0	0.032	0
2.02541	399	0.032	0	Single phase(Liquid)	1041.2	1041.2	0	0	50.7993	50.7993	0	0	1	0	0	0.00173648	0	0.032	0
2.27941	399	0.032	0	Single phase(Liquid)	1041.15	1041.15	0	0	51.7992	51.7992	0	0	1	0	0	0.00172323	0	0.032	0
2.53341	399	0.032	0	Single phase(Liquid)	1041.11	1041.11	0	0	52.7991	52.7991	0	0	1	0	0	0.00171013	0	0.032	0
2.78742	399	0.032	0	Single phase(Liquid)	1041.07	1041.07	0	0	53.799	53.799	0	0	1	0	0	0.00169718	0	0.032	0
…
13.9466	399	0.032	0	Single phase(Liquid)	1038.67	1038.67	0	0	97.7957	97.7957	0	0	1	0	0	0.00125143	0	0.032	0
14.1997	399	0.032	0	Single phase(Liquid)	1038.61	1038.61	0	0	98.7957	98.7957	0	0	1	0	0	0.00124356	0	0.032	0
14.4526	399	0.032	0	Single phase(Liquid)	1038.54	1038.54	0	0	99.7956	99.7956	0	0	1	0	0	0.00123577	0	0.032	0

Two-dimensional calculation

swEOS -D 2 -V PT -R 10/0.1/100/1/1/500 -X 0.032 -O PT_2D.vtk
swEOS -D 2 -V PX -R 100/0.1/800/0/0.01/1 -T 100  -O PX_2D.vtk
swEOS -D 2 -V TX -R 1/1/800/0/0.01/1 -P 100  -O TX_2D.vtk
swEOS -D 2 -V PH -R 100/1/800/100/1/700 -X 0.032  -O PH_2D.vtk
swEOS -D 2 -V XH -R 0.001/0.001/1/100/1/700 -P 200  -O XH_2D.vtk

Three-dimensional calculation

swEOS -D 3 -V PTX -R 10/10/500/1/10/600/0/0.01/1 -O PTX.vtk
swEOS -D 3 -V PHX -R 10/10/500/100/10/600/0.001/0.01/1 -O PTX.vtk

Phase region index table

Phase region index	Phase region
0	Single phase(Liquid)
1	Liquid + Vapor at X=0
2	Pure vapour phase
3	Liquid + Halite
4	Vapour + Halite
5	Vapour + Liquid + Halite
6	Vapour + Liquid on the liquid side
7	Vapour + Liquid on the vapour side