本人学习FLAC3D不久,在学习流-固相互作用分析时,有一个疑惑:
在陈育民编写的 FLAC/FLAC3D基础与工程实例(第二版)书中写道“只要在计算命令中设置config fluid,无论渗流计算是否打开(set fluid on/off ),就进入渗流模式”。
而下面例子中先设置了config fluid,然后set fliud off,照陈育民书中的说法,那么命令set fliud off不就不起作用啊
例子:
config fluid
set fluid off
gen zon brick p0 0 0 -10 size 20 1 10
gen zon brick p0 5 0 0 p1 15 0 0 p2 5 1 0 p3 9 0 5 p4 15 1 0 p5 9 1 5 p6 11 0 5 p7 11 1 5 &
size 10 1 5
group soil
group dam ran x 5 7 z -5 0
group dam ran id 201 a id 211 a id 221 a id 231 a id 241 a
group dam ran id 202 a id 212 a id 222 a id 232 a id 242 a
m e
prop bu 3e7 sh 1e7
ini pp 0 grad 0 0 -10e3 ran z 0 -10
ini dens 2000
model fl_iso
prop por 0.5 perm 1e-10
ini fden 1000 ften -1e10
ini sat 0.0 ran z 0 5
model fl_null ran gro dam
;ini pp 0 ran gro dam
fix z ran z -10
fix x ran x 0
fix x ran x 20
fix y
set grav 10
solve
save elastic.sav
rest elastic.savini xd 0 yd 0 zd 0 xv 0 yv 0 zv 0
app nstress -40e3 grad 0 0 10e3 ran z 0 4 x 0 9solve
save pressure.sav
rest pressure.sav
set fluid on mech off
ini fmod 2e3 ften 0.0 ran gro soil
ini xd 0 yd 0 zd 0 xv 0 yv 0 zv 0
app pp 40e3 grad 0 0 -10e3 ran z 0 4 x 0 9
app pp 0 ran z 0 x 15 20
hist id=10 zone pp id 215
solve