FlowCurve

Fit rheological flow curves to non-Newtonian viscosity models

Scientific AIFree

FlowCurve fits shear rate versus viscosity data to power law, Cross, Carreau-Yasuda, Herschel-Bulkley, and Casson models using weighted nonlinear regression. The tool identifies yield stress from controlled stress ramp data and detects thixotropic hysteresis from up-down shear rate sweeps. Model selection criteria recommend the best-fit constitutive equation for computational fluid dynamics input based on Akaike information criterion ranking.

Key Features

• ✓Multi-model fitting
• ✓Yield stress identification
• ✓Thixotropy detection
• ✓AIC model selection
• ✓CFD parameter export