Numerical Monitoring of Natural Gas Distribution Discrepancy Using CFD Simulator

Table 12

Final deviations between numerical estimates of gas flow parameters and the results of their measurements.

Object	Parameter	Dimension; of value	Initial mode	Resulting; mode	Relative; deviation,; [Pa]	Absolute; deviation
CGP 1	Pressure	[Pa]	1147720.899	1147759.439	0.003358	38.540622
CGP 2	Pressure	[Pa]	1147720.903	1147877.809	0.013671	156.906444
CGP 3	Pressure	[Pa]	1147720.902	1147830.983	0.009591	110.080606
CGP 4	Pressure	[Pa]	1147720.906	1147877.812	0.013671	156.906295
CGP 5	Pressure	[kg/s]	1147721.174	1147771.6	0.004394	50.425668
CGP 6	Pressure	[kg/s]	1147721.173	1147871.127	0.013065	149.953759
GDS 1	Flow rate	[kg/s]	78.819448	77.927585	1.131526	0.891863
GDS 2	Flow rate	[Pa]	78.819448	77.637163	1.499991	1.182285
GDS 3	Flow rate	[Pa]	78.819448	77.637168	1.499985	1.182280
Valve 2	Pressure	[Pa]	1157667.282	1157510.376	0.013554	156.906437
Valve 5	Pressure	𝐗ident∈Θ⊂𝑅^𝑛+1	1157667.279	1157510.373	0.013554	156.906265
Valve 8	Pressure	(1)	1157667.552	1157512.29	0.013412	155.261578