reset
# all dimensions in mm, scaled to m before export
${ t_wood = 25 }
${ t_plexi = 100 }
${ W = 400 }
${ H = 700 }
${ L = 850 }
${ t_patch = 30 }
${ l_patch = 100 }
${ w_patch = 70 }
${ x_patch = W/4 }

# the plate
brick x { W } y { H } z { t_plexi }
move Volume 1 z { t_plexi/2 } include_merged 

volume 1 size 50
curve 11 9 12 10  interval 3
curve 11 9 12 10  scheme equal

# the acoustic domain
brick x { W } y { H } z { L }
move Volume 2 z { -L/2 } include_merged 

volume 2 size 100

# the piezo patch
brick x { l_patch } y { w_patch } z { t_patch }
move Volume 3 x {x_patch} z { t_patch/2+t_plexi } include_merged 

# merge plate & piezo for conforming mesh
imprint volume 1 3  
merge volume 1 3 

volume 3 size 30
curve 33 34 35 36  interval 2
curve 33 34 35 36  scheme equal

mesh volume all


# region names
block 2 add volume 2
block 2 name "V_air"

nodeset 4 add surface 7
nodeset 4 name "S_NC-air"

mesh volume all

block 1 add volume 1 
block 1 name "V_plate"

nodeset 1 add surface 2
nodeset 1 name "S_NC-plate"

nodeset 2 add surface 3 5
nodeset 2 name "S_side-y"
nodeset 3 add surface 4 6
nodeset 3 name "S_side-x"

block 3 add volume 3
block 3 name "V_piezo"



# scale to m before export
Volume all scale 1e-3 
export ansys cdb "coupled.cdb"  overwrite