ANSYS ICEM CFD 网格划分教程2

ANSYS ICEM CFD 网格划分教程

48Modeling and Meshing a Chemical Vapor Deposition Reactor

Figure 1.3.5:

Creating copies of

upcyl

5.Begin renaming the newly created objects by first highlighting

upcyl.1Edit

Object.

http:// > inl1 and Sides family > inlet (this must be manually

entered)

7.Select Update and then Done to complete the operation.

8.Highlight upcyl.2 from tree.

9.Change Name to docyl and press Apply.

The model will now consist of three cylinders on top of each other.

The sides of the central cylinder form the inlet. The intended flow

is depicted in Figure 1.3.6.

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Modeling and Meshing a Chemical Vapor Deposition Reactor49

Figure 1.3.6:

The intended flow for

the CVD reactor

1.3.4: Creating Objects

Creating Cylinders

Create additional Cylinders by choosing Create cylinders icon

from the top menu bar from each of following.

Outduct

1.

2.

3.

4.

5.

http:// > outductPlane > xzCenter coordinates: (0.5, 0, 0.5)Height: 0.35Radius: 0.15Type > fluid

Note: The changes are automatically implemented once the object

Type is selected.

Susceptor

http:// > susceptor

2.Plane > xz

3.Center coordinates:

(0.5, 0, 0.5)

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50Modeling and Meshing a Chemical Vapor Deposition Reactor

4.Height: 0.37

5.Radius: 0.03

6.Type > hollow

Susceptor Top

1.

2.

3.

4.

5.

6.

Figure 1.3.7:

View of the

Cylinders created so

farName > susc-topPlane > xzCenter coordinates: (0.5, 0.37, 0.5)Height: 0.03Radius: 0.2Type > hollowThe Cylinders created so far are shown in Figure 1.3.7.

Creating Circles

Inlet

1.Select Create circles icon from the top menu bar to create a

circle. Select it from the tree and choose for Edit object upon

in Figure 1.3.8.

ICEM CFD Engineering AutoHexa Tutorial ManualVersion 4.2

ANSYS ICEM CFD 网格划分教程

Figure 1.3.8:

Circles edit window

with specifications

for top-inl

Version 4.2Modeling and Meshing a Chemical Vapor Deposition Reactor512.Change the Name to top-inl, signifying that this object will be the top inlet to the reactor. 3.Plane > X-Z4.Center coordinates: (0.5, 0.5, 0.5)5.Radius: 0.036.Face family > inlet7.Press Update to complete the modifications.Now create the remaining Circles using Create circles icon from the top menu http:// > substrate2.Plane > X-Z3.Center coordinates: (0.5, 0, 0.5) 4.Radius: 0.25.Select Update and Done to complete the operation.Outlet1.

Name > outletAutoHexa Tutorial Manual

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52Modeling and Meshing a Chemical Vapor Deposition Reactor

2.

3.

4.

5.

6.

Figure 1.3.9:

Complete CVD

reactor, with the

created Circles

activatedPlane > X-ZCenter coordinates: (0.5, 0, 0.5) Radius: 0.15Face family > outlet (The user should enter this manually).Press Update and Done.The geometry for the CVD Reactor is now complete (Figure 1.3.9).

1.3.5: Mesh Generation

Creating Cartesian Mesh

1.From the AutoHexa viewing window, select Model > Gener-

ate mesh to open the Mesh control window shown in Figure

1.3.10. This is where all the mesh utilities are accessible.

2.Select Mesh type > Cartesian to create a grid that is aligned

with the coordinate axes and quickly generated. Using the

default parameters, select Generate mesh

.

ICEM CFD Engineering AutoHexa Tutorial ManualVersion 4.2

ANSYS ICEM CFD 网格划分教程

Figure 1.3.10:

Mesh control

window with the

default parameters for

this tutorial

Version 4.2Modeling and Meshing a Chemical Vapor Deposition Reactor53Cut planes1.Begin by Orienting the model to the Home position.2.Toggle on Mesh control > Display > Cut plane > Set position > Vertical - screen select. 3.Domain in the AutoHexa viewing window.4.Orient > Orient positive X, and then select Mesh control > Display > Display mesh to obtain the diagram shown by Fig-

ure 1.3.11.AutoHexa Tutorial Manual

ICEM CFD Engineering

ANSYS ICEM CFD 网格划分教程

54Modeling and Meshing a Chemical Vapor Deposition Reactor

Figure 1.3.11:

Mesh cut plane as

seen from the

positive X view using

default parameters

Limiting Element Size

1.The large element size may be controlled by adjusting the Uni-

form spacing. Select Mesh control > Generate > Uniform

spacing > (X count, Y count, Z count) > (50, 50, 50).

2.Press Generate mesh to recalculate the mesh with the modi-

fied counts. The new mesh should yield much finer mesh (i.e.

50x50x50 nodes in a regular grid).

3. Refer to Figure 1.3.12 to see the newly defined mesh cut plane.

Figure 1.3.12:

Diagram of the mesh

cut plane with newly

specified X, Y, and Z

counts and higher

element count than

while using default

parameters

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Modeling and Meshing a Chemical Vapor Deposition Reactor55

Surface Elements

Figure 1.3.13:

Reactor with Surface

elements mesh

displayed on current

object type Circles.

Version 4.21.To view the mesh on various parts of the reactor itself, first turn off the Mesh control > Dis …… 此处隐藏：9276字，全部文档内容请下载后查看。喜欢就下载吧 ……