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Showing 1 to 5 of 5 for “"Parallel superposition"”.
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The Shear and Extensional Rheology of Polymer Dispersions
… the simulated streamlines at low piston speeds. Parallel superposition tests had shown the elasticity of xanthan gum decreasing when a controlled shear rate is applied to the fluid. From this, the relaxation time range was found and applied to the simulations. The simulation pressure drop was …
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Mathematics, Methods, and Models for Data-Driven Rheology
… in simple shear flows, called Medium Amplitude Parallel Superposition (MAPS) rheology. Based on a polynomial expansion of the general time-invariant functional relationship between shear stress and strain (or strain rate) in simple shear flows, MAPS reveals a common embedding for many previously …
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Time-resolved linear and non-linear rheology of thixotropic and aging complex fluids: Application to particulate and biopolymeric physical gels
… of better time-resolved techniques in superposition rheometry. Conventional superposition rheometry consists of combining Small Amplitude Oscillatory Shear (SAOS) with a steady unidirectional shear rate to gain insight into the shear-induced changes to the viscoelastic properties of a …
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Novel Rheometric Techniques and Constitutive Models for Linear and Nonlinear Rheology: Applications to Polymeric Solutions and Colloidal Gels
… this, we augment the Gabor transform with a parallel superposition flow protocol. The resulting deformation history superimposes a nonlinear external drive and probes the material response using superposed small oscillatory perturbation. The resulting ‘pump/probe” protocol allows us to …
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Towards a deeper understanding of thixotropy via transient nonlinear rheology and scattering
Made available in DSpace on 2021-03-05T21:45:30Z (GMT). No. of bitstreams: 3 CHOI-DISSERTATION-2020.pdf: 7031471 bytes, checksum: 03c4f12f62d5fbabfc825dd79e922dcc (MD5) (Source File) Jiho Choi _ Thesis Format Check for Graduate College Nov 13 2020.docx: 11791381 bytes, checksum: …