[songmuqing]

Hello sir,
I want do a simulation about the scour around a circular pile.
Now I get the result like the figure. There is a big dune behind the pile.
Ctrl file and control file are pasted. Is there something wrong with it? Could you give me some suggestions? Thank you in advance.



control

C 11 1
C 12 21
C 13 21
C 14 2
C 15 21
C 16 3


B 1 0.025

B 10 0.0 4.0 0.0 2.0 0.0 0.6

B 101 11
B 102 11
B 103 11
B 127 0.02 0.1  3.0 2.0 1.05
B 128 0.02 0.1  1.0 0.6 1.05
B 129 0.01 0.05 0.3 0.6 1.05

O 33 2.5 1.0 0.1

M 10 4

ctrl

B 10 1
B 11 1
B 50 0.00291
B 60 1 

D 10 4
D 30 1

F 30 3
F 40 3
F 50 3
F 60 0.8

I 10 1
I 20 1500

N 10 14
N 11 11
N 40 6
N 45 500000
N 47 0.3

M 10 4

P 10 1
P 20 200
P 26 1
P 27 1
P 28 1
P 29 1
P 71 1 
P 75 1
P 79 1
P 180 1

S 10 1
S 11 3
S 12 1
S 16 3
S 17 1
S 20 0.00097
S 24 0.6
S 25 29
S 30 0.03
S 32 1
S 57 0.3
S 71 0.2
S 80 2
S 90 1
S 100 1
S 101 2

T 10 22

W 10 0.18
W 22 -9.81

Someone mentioned that the height of domain is 0.6m and the height of free water surface is 0.8m. This is because I want to remove the free water surface to improve the calculation speed and help me quickly test the influence of different parameters on the results.
The second figure is the result of the domain height of 0.8m and F 60 as 0.6m.