Autor(en): | Westervoß, Patrick Turek, Stefan |
Titel: | Simulating two-dimensional viscoelastic fluid flows by means of the “Tensor Diffusion” approach |
Sprache (ISO): | en |
Zusammenfassung: | In this work, the novel “Tensor Diffusion” approach for simulating viscoelastic fluids is proposed, which is based on the idea, that the extra-stress tensor in the momentum equation of the flow model is replaced by a product of the strain-rate tensor and a tensor-valued viscosity. At least for simple flows, this approach offers the possibility to reduce the full nonlinear viscoelastic model to a generalized “Tensor Stokes” problem, avoiding the need of considering a separate stress tensor in the solution process. Besides fully developed channel flows, the “Tensor Diffusion” approach is evaluated as well in the context of general two-dimensional flow configurations, which are simulated by a suitable four-field formulation of the viscoelastic model respecting the “Tensor Diffusion”. |
URI: | http://hdl.handle.net/2003/38461 http://dx.doi.org/10.17877/DE290R-20380 |
Erscheinungsdatum: | 2019-12 |
Enthalten in den Sammlungen: | Ergebnisberichte des Instituts für Angewandte Mathematik |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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Ergebnisbericht Nr. 622.pdf | DNB | 277.56 kB | Adobe PDF | Öffnen/Anzeigen |
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