Unterschiede
Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
| Beide Seiten der vorigen RevisionVorhergehende ÜberarbeitungNächste Überarbeitung | Vorhergehende Überarbeitung | ||
| en:simulation:berechnung [2026/01/10 21:07] – neelest | en:simulation:berechnung [2026/06/26 18:38] (aktuell) – [Calculation Settings] neelest | ||
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| Zeile 49: | Zeile 49: | ||
| The following calculations can be chosen in SIGMA: | The following calculations can be chosen in SIGMA: | ||
| - | * Pressure profile | + | * Pressure profile |
| * Filling degree | * Filling degree | ||
| - | * Melting profile | + | * Melting profile |
| - | * Power profile | + | * Power profile |
| - | * Temperature profile | + | * Temperature profile |
| * Consider an optional heat flow | * Consider an optional heat flow | ||
| - | * Residence time distribution | + | * Residence time distribution |
| - | * Degree of dispersion | + | * Degree of dispersion |
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| All settings for the calculation are defined in the dialog Calculation Settings. | All settings for the calculation are defined in the dialog Calculation Settings. | ||
| - | * **Pressure profile:** Within this calculation it can be chosen between the polynomial, the linear and a regression calculation model. The linear one bases on an analytical approach based on the theory of single screw extruders. Against this the polynomial calculation and the regression model base on an approximation of numerical results. By selecting the modified option the treatment of the nip region in the calculation can be chosen. From our experience the regression model that was newly implemented in SIGMA 4.5 gives the most reliable results. | + | * **Pressure profile:** Within this calculation it can be chosen between the polynomial |
| - | * **Melting profile:** Within this calculation it can be chosen between four different models: Compacted, Disperse, Binary and Modified Disperse. The compacted calculation model is a modified Tadmor model as it is known in the theory of single screws. The disperse model presumes that the granulate melts isolated. The binary model takes the melting of binary systems (blends and compounds) into account. The modified dispersed melting model is based on the dispersed model. However, the finite influence duct dimension, the influence of the convection as well as the influence of the particles on the stream will be included additionally within this model. | + | |
| - | * **Temperature profile:** Within this calculation it can be chosen between a traditional rectangular model and a new twin screw model. If a heat flow is considered for the temperature calculation, | + | |
| - | * **Power profile:** Within this calculation it can be chosen between a traditional rectangular model and a new twin screw model. | + | |
| - | * **Degree of dispersion: | + | |
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| - | + | * **Melting profile:** Within this calculation it can be chosen between five different models: Compacted, Disperse, Binary, Modified Disperse and 2D Disperse. The compacted calculation model is a modified Tadmor model as it is known in the theory of single screws (s. [[en: | |
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| + | * **Temperature profile:** Within this calculation it can be chosen between a traditional rectangular model (s. [[en: | ||
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| + | * **Power profile:** Within this calculation it can be chosen between a traditional rectangular model (s. [[en: | ||