Unterschiede
Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
| Beide Seiten der vorigen RevisionVorhergehende ÜberarbeitungNächste Überarbeitung | Vorhergehende Überarbeitung | ||
| en:rex3d:rex3dpreprocessing [2024/11/11 17:43] – neelest | en:rex3d:rex3dpreprocessing [2026/09/17 09:23] (aktuell) – gelöscht - Externe Bearbeitung (Unbekanntes Datum) 127.0.0.1 | ||
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| - | ====== REX3D Pre-Processing====== | ||
| - | ===== Preparing a REX3D simulation===== | ||
| - | Before a flow simulation can be carried out, it must be configured as follows:\\ | ||
| - | * **Way 1**: Menu: // | ||
| - | * **Way 2**: Double-click on //REX3D//\\ in the process tree | ||
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| - | In the window that appears, you must select whether the simulation should be assigned to an existing process or whether no assignment should be made. | ||
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| - | The following window then opens:\\ | ||
| - | ====Define geometry data==== | ||
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| - | The simulation is configured in this window. If the configuration has previously been assigned to a process, the available screw zone and the process parameters are already defined according to the process. If the configuration is not assigned to a process, you must make these settings yourself. \\ | ||
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| - | Once a process has been selected, the screw zones, shear and mixing parts it contains can be selected. Up to three screw zones (main element, predecessor, | ||
| - | A transition area (gap) can be defined as a transition between two elements.\\ | ||
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| - | ====Define material==== | ||
| - | The respective process-bound, | ||
| - | ====Define process parameters==== | ||
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| - | The viscosity limits are determined automatically from the defined material data and do not need to be modified. Furthermore, | ||
| - | The grid quality is set to Coarse by default. It can be changed under Simulation settings. There are a total of three gradations of grid quality. However, as the quality increases, so does the computing requirement and therefore the duration of a simulation.\\ | ||
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| - | Another standard setting is the isothermal simulation. In this case, the plastic melt has a constant material temperature as set in the flow simulation under process parameters.\\ | ||
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| - | If the configuration is assigned to a process, the window can be closed by clicking //OK//. A warning message appears. This draws attention to the fact that subsequent editing of the default settings is no longer possible. By | ||
| - | click //OK// again to save the configuration and assign it to the corresponding process:\\ | ||
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| - | Alternatively, | ||
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| - | =====Starting a REX3D simulation===== | ||
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| - | To start the simulation, the REX3D tab must be expanded within the project data. All Extrud3D configurations created that are assigned to the respective process are displayed here.\\ | ||
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| - | Double-click on the name of a configuration to open it:\\ | ||
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| - | * The number of CPU cores is set here. At least 3 CPU cores must be available for the simulation. \\ | ||
| - | * The simulation can now be started via the button //REX3D Simulation starten//. The necessary hardware requirements are displayed via the //i // button.\\ | ||
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| - | First, a three-dimensional finite element mesh generator (gmsh) generates the geometries based on the previously defined input data and displays the result in a preview window.\\ | ||
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| - | The element can be moved and rotated in space using the mouse. The //Top view// and //Front view// buttons enable predefined viewing angles of the generated element.\\ | ||
| - | If the generated mesh meets the expectations, | ||
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| - | ===Further topics=== | ||
| - | * [[en: | ||
| - | * [[en: | ||
| - | * [[en: | ||