Failure in Meshing：Volume 18 must have its meshing scheme explicitly specified

Coreform Cubit Meshing
#1

Sorry to bother you all, I’m a newbie and have run into some problems during my recent model creation process, I hope you can point out my mistakes or offer some advice.Here is my model parameter file and the specific error.
reset

brick x 200 y 150 z 25

move vol 1 x 100 y 75 z -12.5

brick x 180 y 5 z 5

move volume 2 x 100 y 12.5 z -12.5

brick x 180 y 5 z 5

move vol 3 x 100 y 137.5 z -12.5

brick x 200 y 70 z 5

move vol 4 x 100 y 75 z -12.5

subtract vol 2 from vol 1

subtract vol 3 from vol 5

subtract vol 4 from vol 6

brick x 200 y 70 z 5

move vol 8 x 100 y 75 z -12.5

jia gan

brick x 80 y 50 z 1

move vol 9 x 100 y 70 z -11.5

brick x 80 y 50 z 1

move vol 10 x 100 y 80 z -13.5

subtract vol 9 from vol 8

subtract vol 10 from vol 11

jia gan

brick x 80 y 50 z 1

move vol 13 x 100 y 70 z -11.5

brick x 80 y 50 z 1

move vol 14 x 100 y 80 z -13.5

split curve 9 distance 10

split curve 10 distance 10

split curve 12 distance 10

split curve 11 distance 10

create surface vertex 113 114 115 116

section volume 7 with surface 85 keep normal

section volume 7 with surface 85 reverse

split curve 93 distance 2

split curve 94 distance 2

split curve 96 distance 2

split curve 95 distance 2

create surface vertex 153 154 155 156

section volume 12 with surface 110 keep normal

section volume 12 with surface 110 reverse

split curve 244 distance 1

split curve 248 distance 1

split curve 253 distance 1

split curve 246 distance 1

create surface vertex 177 178 179 180

section volume 18 with surface 128 keep normal

section volume 18 with surface 128 reverse

split curve 197 distance 5

split curve 199 distance 5

split curve 203 distance 5

split curve 212 distance 5

create surface vertex 201 202 204 203

section volume 16 with surface 144 keep normal

section volume 16 with surface 144 reverse

delete vol 15 17 19 21

imprint all

merge all

vol 7 size 1

mesh vol 7

vol 12 size 1

mesh vol 12

vol 13 size 1

mesh vol 13

vol 14 size 1

mesh vol 14

vol 18 size 1

mesh vol 18

vol 20 size 1

mesh vol 20

vol 22 size 1

mesh vol 22

vol 23 size 1

mesh vol 23

vol 24 size 1

mesh vol 24

and Cubit>mesh vol 18
Volume 18 (Volume 18) may be meshable with scheme submap.
Trying scheme sweep for automation purposes. If
this fails, try manually setting the scheme to submap.
WARNING: Volume 18 must have its meshing scheme explicitly specified;
it is not automatically mappable, submappable or sweepable.
Nothing to match.
ERROR: C:/Users/Q/Desktop/0626-cubit/jia_gan.jou (78). 1 volume did not mesh : Volume 18

#2

Hello @sunflower,

in your case if you just want to mesh it, than as cubit suggested you would only need to set the submap scheme manually and mesh again.

Adding

vol 18 scheme submap
mesh vol 18

to your journal will already do it.

Usually i would decompose the geometry further and with webcuts instead of the section command.

If you are new to the cubit workflow i would suggest you take a look at the training material thats available.

It helps greatly to get to know cubit and how geometry can be meshed.