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Table 3 Results of the multiscale simulations with different boundary temperature Th (FR represents fully-resolved)

From: A Gaussian process regression accelerated multiscale model for conduction-radiation heat transfer in periodic composite materials with temperature-dependent thermal properties

Th

CPU time

CPU time of FR simulation

Relative error of T0

Relative error of Tε

Relative error of I0

Relative error of Iε with I1,cell

Relative error of Iε with I1,ave

900 K

4.99 h

23.3 h

0.796%

0.305%

13.72%

11.84%

6.54%

1100 K

5.39 h

66.4 h

1.081%

0.773%

13.06%

11.25%

6.21%

1300 K

6.64 h

69.2 h

1.274%

1.000%

12.47%

10.72%

5.90%