Table 1 The relaxation time τ, and its equivalent quality factor Q for different cases of time interval Δt and dominant frequency f m .

From: Modelling viscoacoustic wave propagation with the lattice Boltzmann method

Δt, f m     τ

0.505

0.51

0.515

0.52

0.53

0.54

0.55

0.58

0.60

0.65

0.70

0.75

0.80

0.90

0.50 ms, 25 Hz

1200

630

424

318

206

150

122

76

62

42

32

26

22

19

0.50 ms, 50 Hz

600

300

207

158

103

75

59

38

31

21

16

13

10

8

0.50 ms, 75 Hz

410

212

142

106

62

50

39

25

20

14

11

9

7.5

6

0.25 ms, 50 Hz

1273

636

420

318

206

150

122

76

62

42

32

26

22

19

0.50 ms, 50 Hz

600

300

207

158

103

75

59

38

31

21

16

13

10

8

1.00 ms, 50 Hz

305

150

106

79

49

37

29

19

15.5

10.5

8

6.5

5.5

4.5

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