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Showing 1 to 4 of 4 for “"Viscoplastic fluids"”.
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High performance simulations of yield stress fluids in a structured adaptive mesh refinement framework with embedded boundaries
Viscoplastic fluids are a class of non-Newtonian liquids characterised by their yield stress. Unless an external stress is applied which is larger than this threshold value, the fluid does not flow, but exhibits rigid body behaviour. Above the yield stress, applied forces cause viscous deformation. …
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Rheology of bubbly liquids containing a non-Newtonian continuous phase
… found in industrial and consumer settings have a viscoplastic continuous phase. This project has investigated the rheology of bubbly liquids with a viscoplastic continuous phase, namely a commercial polymer solution called ClearGlide<sup>TM</sup> that belongs to a family of yield stress fluids …
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CFD studies of complex fluid flows in pipes
The flow of rheologically complex fluids in industrial equipment poses a number of challenges, not least from a modelling point of view. Research is needed to further understand and be able to predict the flow behaviour of such materials and to investigate ways of improving their processing. This …
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Κίνηση, παραμόρφωση και αλληλεπίδραση φυσαλίδων λόγω βαρύτητας ή/και μεταβολής της πίεσης του περιβάλλοντος ρευστού
Αντικείμενο της παρούσας εργασίας είναι η πρόβλεψη τόσο της κίνησης, αλληλεπίδρασης και παραμόρφωσης δύο φυσαλίδων λόγω μεταβολής της πίεσης στο περιβάλλον ιξώδες υγρό, όσο και της ανοδικής κίνησης μιας φυσαλίδας λόγω άνωσης σε ένα Νευτωνικό ή ιξωδοπλαστικό ρευστό. Για τη μοντελοποίηση των …