physics

Rheology & Flow Behavior

The science of material deformation and flow — viscosity models, yield stress thresholds, thixotropic time-dependence, extensional flow dynamics, and modern rheometric measurement techniques.

rheologyviscosityyield stressthixotropynon-Newtonianextensional flowrheometry

Rheology is the study of how materials deform and flow under applied forces. From the ketchup that refuses to leave the bottle until shaken to the polymer melts extruded into plastic films, rheological behavior governs industrial processing, food science, cosmetics, and biomedical engineering. Understanding viscosity, yield stress, and time-dependent flow is essential for designing products and processes that behave predictably.

These simulations let you explore shear-thinning and shear-thickening viscosity models, probe yield stress phenomena in structured fluids, observe thixotropic breakdown and recovery, visualize extensional flow in polymer solutions, and calibrate virtual rheometers — all with real-time interactive controls and physically grounded constitutive equations.

5 interactive simulations

simulator

Extensional Flow & Elongational Viscosity

Simulate extensional flow of polymer solutions — explore how strain rate, relaxation time, and extensibility govern filament thinning and elongational viscosity

simulator

Rheometry & Oscillatory Testing

Simulate oscillatory rheometry — explore how frequency, strain amplitude, and material viscoelasticity determine storage modulus G' and loss modulus G''

simulator

Thixotropy & Time-Dependent Flow

Simulate thixotropic behavior — explore how viscosity evolves over time during shearing and recovery as microstructure breaks down and rebuilds

simulator

Viscosity Models & Shear Response

Simulate non-Newtonian viscosity models — explore how shear rate, consistency index, and power-law exponent govern shear-thinning and shear-thickening behavior

simulator

Yield Stress & Plastic Flow

Simulate yield stress phenomena — explore how Bingham plastics and soft solids transition from solid-like to flowing behavior under applied stress