Mesh-Intro 14.0 L-04 Meshing Methods

7/27/2019 Mesh-Intro 14.0 L-04 Meshing Methods

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14. 0

I AN

M

L 4M M


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M M

A M D H M CC

M 2D M M B

D M

I


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Sketches andPlanes

Geometry ImportOptions

3D Operations

Direct CAD/Bi-Directional CAD

GeometryCleanup and

Repair

AutomaticCleanup

Merge, Connect,Projection, Flow

Volume

Extraction, etc

Extrude, Revolve,

Sweep, etc

3D Operations

Boolean, BodyOperations, Split,

etc

MeshingMethods

Hybrid Mesh: Tet,

Prisms, Pyramids

Hexa Dominant,

Sweep meshing

Global Mesh

Settings

Local MeshSettings

Sizing,

Body/Sphere ofInfluence, Match

Control, etc

G C

G I

G

M

Assembly

Meshing


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I , M, I > M

, G , () ,

, I > M

M , A, , ,

(A

)

I M


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A M


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M B

C C M A

A

D C &

A D M C M

A

A M


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M


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M B

G : C

I

M


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M & A B

B : M , A

( )

G () CAD

/

A

I M A

C

M: C


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M & A B

: F,

, G

() CAD

M D

A I M

A

I

M: I


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M: AC

Geometry containingsmall details

Patch Conforming: Allgeometric detail is

captured

Patch Independent: Canignore and defeature

geometry


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C

M C

G & L C

A

/ G C

D G & L C

C

M: C


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I

I

I D

A &

M: C


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I

D C M B D

D

A N

M: C

= 0.03. > 0.03

.


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A /B L

:

CFD

E

M

C C I

I I G / L

M: I

Inflation preview

Tet + Prisms


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C

C CAD,

I

D CAD,

M: A

E


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H M


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H M

F

E I A

M A

M

H D ( M)I

C

I

I

Tet Mesh

Elements: 48K

Sweep Mesh

Elements: 19K


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M B

M , G /

B , (

) A

A

I M

M

F F

F()


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/ (/ )

A A

M & M ( )

A & M

M

Sweep Direction Source Face Target Face


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/ B

A .

&

I

&

,

M

Sweep Mesh No inflation

Automatic Selection

Sweep Mesh with inflation

Manual Selection


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E: /

&

F &

M

Sweep Mesh: Wedgeand Hex elements

Manual Source &Target Selection

TargetFace

SourceFace


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Target

/ : A

& M

A

&

D

&

M

SourceFaces

Source FacesImprinted on Target


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M

H I

AN M M > B

RMB on Mesh to find

sweepable bodies

Geometry Sweepable bodies in

green color


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M

H E B

B

D CAD/DM E 1

Unsweepable body

Decomposed inCAD/DM

Sweepable!


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E 2

M

T Junction GeometryUnsweepable

Decomposed in

CAD/DM

Sweepable!


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M B

B AN ICEM

CFD H

A

&

G ,

.

C C &

B H M ( / ) C C

A

I M M

M M

MultiZone

Mesh


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E 1

/ A E

M M


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E 2

B , M

F M

F M

, ,

(, /, )

M M

Free MeshTetra

Free MeshHexa Core


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A M


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M B

M

A

& & &

A

A CC/

A M M

A M

0


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C

/ CFD/F A F

I G L &

CC M ( = 40)

, 0 .

()

A

A M


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CC M C

C

:

, .

C

A

, , .

A ( )

/

A

A M: C


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A M

B E

( ) CAD

Material

point

Assembly

CappingFace

Handling face-edge

connectivity


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A M: F E

1

B

1. D C F

2. I B

3. A C M

B

2

3

Material

Point


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C M M

F

CAD/DM

A

3

,

.

I

F CC

M . M

M

.

M A M

G M C L.

A M L


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2D M


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C M A (

) & A

A

I M / &

A N

M 2D M

Automatic Triangles

UniformQuad

UniformQuad/Tri


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M M

F /

C L M C

2D I

3D

B

2D M C & I

MappedControl


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AN FLEN

F 2D FLEN (=0).

F 0

I AN M, ,

.

FLEN 2D

AN CF

F 2D CF, ( ) 1

, ..,

B 2D

(< 5) 2D A

2D M G


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M M B


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M

M?

M?

B

M ( ) A

,

E


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L

M

( )

A/ ()

M

Meshing first the block then the pipeMeshing first the pipe then the block


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M

M C M

N

E; M

M


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B

F , C

A > A: A

(/) ()

A: A

()

E; G .

M


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2 I M

M


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A

C

H D M M B & C G M I M C M

I


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H D M

CFD CFD

A MB M

IM DM H D


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H D M

E:

Geometry withvalve inside

Due to valve sweepmethod cannot beused

Hex DominantMesh generated


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H D M

F () F M

D ( )

/ A

M


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H D M

E:

Geometry withvalve inside

Free Face Mesh Type:Quad/Tri

Free Face Mesh Type:All Quad

Higher no. ofelements

Lower no. of

elements


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H D M

E: H D M E

Hex Dominant Mesh

He

x

Tet

Pyram

id

Wedge

M


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M

C: F () M

Sweepable Geometry

Source faceelements: Only

Quad

Source face

elements: Quadplus Tri

Source faceelements: Only Tri

Type: All Quad

Type: Quad/Tri

Type: All Tri

M


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M

C:

Element size inswept direction

2mm

No. of elements inswept direction: 10

Sweep Element Size

Sweep Num Divisions

Sweepable Geometry

N D > 1000. I > 1000

M


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M

C: B

Uniform mesh

Cells areconcentrated on

one side

No Bias

With Bias

Sweepable Geometry

M : C


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M : C

M I


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M I

M I

M C


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M C

F ,

M

M

M

( CE

)

Gap

Gap removed atmesh level

Connected Mesh

M: E


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M: E

Edge colored by the number of connected faces

Automatic generation of mesh connections

Mesh connectivity can be shown also after meshing

Ability to find mappable faces

M: I


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E

M: I

Smooth Transition Off (default) Smooth Transition On

Mesh-Intro 14.0 L-04 Meshing Methods

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