Table 4 Comparison between test results and numerical simulation results.

From: Research on shock wave driving technology of methane explosion

Test point

 

Test

Numerical simulation

Relative error

T1

Peak overpressure/kPa

200.8

228.7

13.8%

Positive pressure duration/ms

25

47

46.8%

T2

Peak overpressure/kPa

216.4

202.3

6.5%

Positive pressure duration/ms

37

41

9.7%

T3

Peak overpressure/kPa

157.5

175.2

11.2%

Positive pressure duration/ms

35

40

12.5%