Whole blood viscosity modeling using power law, Casson, and Carreau Yasuda models integrated with image scanning U-tube viscometer technique

摘要

This study presented the image scanning U-tube viscometer technique to measure the whole blood viscosity. Twodifferent constitutive models, power law and Casson, were selected to calculate blood viscosity. Results were compared withrotating viscometer. They had a good agreement at higher shear rates. Three constitutive models power law, Casson andCarreau Yasuda models were applied to blood viscosity data and used to simulate transient blood height in the U-tube.Comparison of the U-tube simulation and the actual experiment showed that Carreau Yasuda model is the most accuratemodel for whole blood viscosity measurement.