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Nächste Überarbeitung		Vorhergehende Überarbeitung
en:sigma3d-interface [2026/02/27 09:18] – [Generate PDF report] adminen:sigma3d-interface [2026/03/02 10:36] (aktuell) – [Shear stress] admin
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 By double-clicking a configuration name, the SIGMA3D main window opens: By double-clicking a configuration name, the SIGMA3D main window opens:
  
-{{ :en:en_sigma151_dlg_sigma3d-interface_004.png?nolink |SIGMA3D main window (Pre-Processing / Post-Processing tabs)}}+{{ :en:en_sigma151_dlg_sigma3d-interface_004.png?nolink&1000 |SIGMA3D main window (Pre-Processing / Post-Processing tabs)}}
  
 ===== Simulation execution (Extrud3D) ===== ===== Simulation execution (Extrud3D) =====
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 The information dialog (see screenshot) explains: The information dialog (see screenshot) explains:
  
-{{ :en:en_sigma151_dlg_sigma3d-interface_005.png?nolink |Information about time steps and particle tracing recommendation}}+{{ :en:en_sigma151_dlg_sigma3d-interface_005.png?nolink&600 |Information about time steps and particle tracing recommendation}}
  
  
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 After a successful calculation, the status line changes to a stopped/completed state (wording depends on version), and the progress reaches **100.0%**. After a successful calculation, the status line changes to a stopped/completed state (wording depends on version), and the progress reaches **100.0%**.
  
-{{ :en:en_sigma151_dlg_sigma3d-interface_007.png?nolink |Completed simulation example (status stopped at 100%)}}+{{ :en:en_sigma151_dlg_sigma3d-interface_007.png?nolink&1000 |Completed simulation example (status stopped at 100%)}}
  
  
Zeile 343: Zeile 343:
   * **Area** : Channel, cross section or both   * **Area** : Channel, cross section or both
  
 +=== Result view of slices in channel direction ===
 +  * **Single channel slice with numerical statistics**:
 +{{ :en:en_sigma151_dlg_sigma3d-interface_015.png?nolink |Example slice viewer: velocity contour with averaged quantities}}
 +
 +Depending on the result type, the viewer may provide:
 +
 +  * Variable selection (e.g. viscosity, velocity magnitude)
 +  * Slice selection
 +  * View mode selection (e.g. full slice)
 +  * Numerical statistics such as:
 +    * area
 +    * mass flow rate (conveying direction / channel direction)
 +    * average viscosity
 +    * average shear rate
 +    * average velocity components / magnitude
 +  * **Open in Para View** button for advanced 3D inspection
 ==== Generate rendered screw element ==== ==== Generate rendered screw element ====
  
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 Configuration dialog: Configuration dialog:
  
-{{ :en:en_sigma151_dlg_sigma3d-interface_012.png?nolink&1000 |Configure PDF report}}+{{ :en:en_sigma151_dlg_sigma3d-interface_012.png?nolink&400 |Configure PDF report}}
  
 Configurable parameters: Configurable parameters:
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 Example output (PDF cover and table of contents): Example output (PDF cover and table of contents):
  
-{{ :en:en_sigma151_dlg_sigma3d-interface_017.png?nolink |Example SIGMA3D PDF report}}+{{ :en:en_sigma151_dlg_sigma3d-interface_017.png?nolink&1000 |Example SIGMA3D PDF report}}
  
  
Zeile 390: Zeile 406:
 The software provides a **mixing quotient** evaluation after running a particle tracking simulation. The software provides a **mixing quotient** evaluation after running a particle tracking simulation.
  
-{{ :en:en_sigma151_dlg_sigma3d-interface_018.png?nolink&1000 |Mixing quotient evaluation (cross-section + curve over timestep)}}+{{ :en:en_sigma151_dlg_sigma3d-interface_018.png?nolink&800 |Mixing quotient evaluation (cross-section + curve over timestep)}}
  
 The displayed delaunay evaluation typically consists of: The displayed delaunay evaluation typically consists of:
Zeile 402: Zeile 418:
 A shear-stress evaluation can also be generated (e.g. histogram-based output depending on the configured post-processing options and software version). A shear-stress evaluation can also be generated (e.g. histogram-based output depending on the configured post-processing options and software version).
  
-Use case: +{{ :en:en_sigma151_dlg_sigma3d-interface_020.png?nolink&800 |}}
- +
-  * assessment of mechanical load on the polymer melt +
-  * process optimization for shear-sensitive materials +
-  * comparison of local peak loads between screw setups +
- +
-Note: +
-No dedicated shear-stress screenshot is included in the current figure set. The exact display format may vary (histogram / contour / statistics), depending on version and selected output type. +
- +
-===== Accessing and interpreting results ===== +
- +
-After post-processing is completed, generated outputs are listed in the **Attachments** tab of the SIGMA3D window and/or in the **Manage SIGMA3D projects** dialog. +
- +
-Example result viewers (screenshots): +
  
  
    
  
-  * **Single channel slice with numerical statistics**: 
-{{ :en:en_sigma151_dlg_sigma3d-interface_015.png?nolink |Example slice viewer: velocity contour with averaged quantities}} 
  
-Depending on the result type, the viewer may provide: 
- 
-  * Variable selection (e.g. viscosity, velocity magnitude) 
-  * Slice selection 
-  * View mode selection (e.g. full slice) 
-  * Numerical statistics such as: 
-    * area 
-    * mass flow rate (conveying direction / channel direction) 
-    * average viscosity 
-    * average shear rate 
-    * average velocity components / magnitude 
-  * **Open in ParaView** button for advanced 3D inspection 
  
 ==== Result file location ==== ==== Result file location ====
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 This is a fast method for local element studies and comparative investigations of specific screw sections. This is a fast method for local element studies and comparative investigations of specific screw sections.
  
-===== Engineering recommendations  =====+===== Recommendations  for numerical simulation with SIGMA=====
  
-==== For setup and runtime ====+**For setup and runtime**
  
   * Start with a **coarse / rough mesh** for initial feasibility studies.   * Start with a **coarse / rough mesh** for initial feasibility studies.
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   * Increase resolution only after the setup has been validated.   * Increase resolution only after the setup has been validated.
  
-==== For thermal simulations ==== +**For thermal simulations**
- +
-  * Use non-isothermal simulation only when thermal effects are process-relevant (e.g. viscous heating, melting progression, temperature-sensitive materials). +
-  * Check CPU/RAM availability before enabling thermal and melting calculations simultaneously.+
  
-==== For particle tracking and mixing analysis ====+  * Use non-isothermal simulation only when thermal effects are process-relevant. 
 +  * Check CPU/RAM availability before enabling thermal and melting calculations simultaneously and keep in mind, that this simulation can take time.
  
-  * Ensure sufficient **time step resolution** (recommended >= 40 for particle-tracing evaluation). +**For particle tracking and mixing analysis**
-  * Begin with moderate particle density to estimate runtime. +
-  * Use mixing quotient trends to compare screw element designs quantitatively.+
  
-==== For documentation ====+  * Ensure sufficient **time step resolution** ( 36 for particle-tracing evaluation are recommended).
  
-  * Export the SIGMA3D configuration before final run. 
-  * Generate: 
-    * rendered screw image 
-    * key slices 
-    * PDF report 
-  * Archive all outputs together with the process version and material dataset used.