Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Linear rheology"”.
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Role of viscoelasticity and non-linear rheology in flows of complex fluids at high deformation rates
… to study three phenomena for which the fluid rheology plays a dominant role: 1) shear banding in micellar fluids, 2) extension-dominated flows in microfluidic devices, and 3) flow-induced particle migration in microchannels. Firstly, worm-like micellar solutions are model non-Newtonian fluids …
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Time-resolved linear and non-linear rheology of thixotropic and aging complex fluids: Application to particulate and biopolymeric physical gels
… over parallel superposition to avoid non-linear cross-coupling of the steady shear and oscillatory deformation fields. This cross coupling can lead to unphysi- cal sign changes in the measured material properties, and makes it difficult to interpret the flow-induced mechanical properties. …
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Rheology and processing of mozzarella cheese
… commercial synthetic polymers. In this work, the rheology of mozzarella cheese was studied using well-developed rheological techniques. Utilizing various rheometers, the linear and non-linear rheology of mozzarella cheese was examined. General practical properties of mozzarella cheese such as …
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Gel Development Using Cellulose Nanocrystals
… amplitude strains is also characterized by non-linear rheology. The gel collapse behavior and the self-healing dynamics of CNC-based gels are also quantified using fluorescence recovery after photobleaching (FRAP) analysis. It is shown that CNCs can coagulate upon increasing the ionic strength …
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3D trench-parallel flow in the subduction region and correlation with seismic anisotropy direction
… be that factors such as high temperature and non-linear rheology cause the LPO direction to align trench perpendicular in both the cases. It can also be possible that the 3D vertical flow is not strong enough to cause change in orientation of the LPO direction. From the present study it can be …
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Co-design of surface textures and non-newtonian fluids for decreased friction
Engineering design is typically limited to linear elastic solids or Newtonian fluids; however, design with more complex materials (for example non-linear viscoelastic materials) can provide ways to enhance performance. The main problems for design with non-linear viscoelastic materials are 1)~there …
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Structure, Dynamics and Association of Thermosensitive Core-Shell Particles
… observation, polarized optical microscopy and rheology. The effective volume fraction of the particles as derived from their hydrodynamic radius provides the base for all further analysis. After addition of salt all dispersions crystallize at volume fractions above 0.5. The core-shell microgels …
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Application of Polymer and Nanomaterials for Improving Heavy Oil Recovery
… converging and diverging pores in porous media, linear and nonlinear rheology were employed to characterize the mechanical and flow behaviors of these hybrid dispersions. Sandpacks were used as the porous media to simulate oil reservoirs. Different hybrid dispersions were injected into sandpacks …
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Viscoelastic and nanomechanical behaviors of polymeric materials
… melts with different topological structures: linear (pure and blend), ring (pure and mixed with linear chain contaminants), comb, and bottlebrush. A new parameter: the reciprocal of complex modulus at the first minimum moving from the terminal regime (1⁄(G_(δ_(min,1))^* )) is defined and …