0         ！MRT set 1,   BGK set 0
0  ic.plt   ！CONTI,   resume :1 ,  new 0 //follows input datafile name
0	！LES   yes: 1 ,   no: 0 
1  mesh_2d.dat ！GEO  read complex geo?  yes:1, no:0 //follows input datafile name
1	! MB   multiblock LBM?   yes:1, no:0
0  2.e-3  !CONV   using converge criterion?   yes:1, no:0
600     ！NX
400      !  NY
1     ! NZ
240    ！ NX2
160    ！ NY2
1    !  NZ2
200      ! LowX
160      ! LowY
0     ! LowZ
200   !  framerate 
50000   ！total steps to terminate
1.0      !  density
0.54    ！ tau
(0.0, 0.0, 0.0000000)   ！ Volumetric force vector (gx, gy, gz)
D2Q9          ! velocity set
Poiseuille        ! boundary condition
! note: in the following, boundary types: periodic,velocity, pressure
! are allowed. if "velocity" is applied, please strictly follow the format "velocity (%lf, %lf, %lf)".
velocity (0.1, 0.00, 0.0)                    ！xmin face
pressure 1.0                   ！xmax face
velocity (0.1, 0.00, 0.0)   	！ymin face
velocity (0.1, 0.00, 0.0)   	！ymax face, 
nonslip                    ！zmin face
nonslip                    ！zmax face
-------------------！ initial velocity field
(0.1, 0.00, 0.0)