Numerical methods and HPC
Open Access

Table 5

Comparison of several convergence indicators such as the tracer, ester and alcohol outlet concentration profiles maximum peak concentrations max C(i,W) (i = t, e, a) and the tracer width at mid height , when using first- and second-order schemes and performing a grid refinement.

Scheme n max C t,W (ppm) max C e,W (ppm) max C a,W (ppm) (days)
(1) 1 273 118 173 1.68
2 376 161 222 1.23
4 508 220 280 0.92
8 669 285 342 0.69
16 831 361 417 0.57
1 414 170 230 1.12
2 612 253 309 0.75
4 832 364 417 0.56
8 967 452 506 0.50
16 999 491 552 0.50
1 578 224 281 0.85
2 894 366 414 0.54
4 1000 506 558 0.50
8 1000 512 582 0.50
16 1000 510 592 0.50

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