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Extrusion Guidelines | CFD | Autodesk Knowledge Network
The Extrusion button on the Mesh task dialog is active only when the following conditions are met:. An extrudable part contains the following attributes:. The topology of the part must be invariant autodesk cfd 2019 handbuch free the extrusion direction. For a part to be extrudable, it must have the same cross-section in at least one direction.
If a part consists of an extrudable region connected to another region with a different cross section, the part is not extrudable:. In this example, because all three regions are in the same part, the part is not extrudable.
The pipe and channel protruding out from the box autodesk cfd 2019 handbuch free be extrudable if they were autodesk cfd 2019 handbuch free parts forming an assembly. Only parts that have autodesk cfd 2019 handbuch free читать extrusion path are eligible for extrusion.
Parts that bend, even if the cross section is uniform, are not extrudable:. Only three dimensional parts are supported by autodesk cfd 2019 handbuch free. Two dimensional surfaces in 2D analyses must be free meshed. It is not possible to extrude in a direction if edges on a surface are normal to that direction:.
The other direction адрес fine because the edge is uniform through the entire extrusion direction. The surfaces at the ends of an extrudable /63354.txt must be parallel to each other. This is an extension of the uniform cross-section rule, and explicitly applies the rule to the ends of the volume:. The part must be topologically identical between the endcaps.
It must have the same number and orientation of bounding edges on both surfaces. There are some analysis types that extrusion cannot be used with:. Objects within a rotating region that have a uniform cross-section that satisfy the requirements for mesh extrusion can be extruded.
The mesh inside of the rotating region, however, cannot be extruded because the interface between the rotating region and the adjacent stator must be a conformal matching mesh. Extruded meshes are not compatible with radiation calculations. An error is issued if objects are extrusion meshed and Radiation is enabled. Extruded meshes are not compatible with phase change two-phase mixtures calculations.
An error is issued if objects are extrusion meshed and phase change is enabled. Surface parts cannot touch parts that are extrusion autodesk cfd 2019 handbuch free. This limitation по ссылке to surface parts used as obstructions solidscontact resistance, and distributed resistances.
Parts with embedded-physics materials such as internal fan, centrifugal blower, and check valve materials cannot be extrusion meshed. The Extrusion button on the Mesh task dialog is active only when the autodesk cfd 2019 handbuch free conditions are met: Automatic Sizing has been invoked One or more extrudable parts have been selected. An extrudable part contains the following attributes: A uniform cross-section The topology of the part must be invariant in the extrusion direction.
If a part consists of an extrudable region connected to another region with a different cross section, the part is not extrudable: In this example, because all three regions are in the same part, the part is not extrudable. Linear extrusion path Only parts that have a linear extrusion path are eligible for extrusion. Three dimensional Only three dimensional parts are supported by extrusion. Ends are parallel to each other The surfaces at the ends of an extrudable part must be parallel to each other.
This is an extension of the uniform cross-section rule, and explicitly applies the rule to the ends of the volume: The part must be topologically identical between the endcaps. Rotating Regions Objects within a rotating region that have a uniform cross-section that satisfy the requirements for mesh extrusion can be extruded.
Radiation Extruded meshes are not compatible with radiation calculations. Autodesk cfd 2019 handbuch free Change Extruded meshes are not compatible with phase change two-phase mixtures calculations. Surface parts Surface parts cannot touch parts that are extrusion meshed. Material Models internal fans, blowers, etc. Parent topic: Extrusion.
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