An apparent viscosity function for shear thickening fluids

作者：Galindo Rosales F J^*; Rubio Hernandez F J; Sevilla A

来源：Journal of Non-Newtonian Fluid Mechanics, 2011, 166(5-6): 321-325.

DOI：10.1016/j.jnnfm.2011.01.001

• Generalized Newtonian Fluid
• Viscosity function
• Shear thickening fluids
• Rheology
• Fumed silica suspensions

A new apparent viscosity function for shear thickening fluids is proposed, contemplating the three characteristic regions typically exhibited by these materials: slight shear thinning at low shear rates, followed by a sharp viscosity increase over a threshold shear rate value (critical shear rate), and a subsequent pronounced shear thinning region at high shear rates. The proposed function has a continuous derivative, making it appropriate in numerical simulations. Moreover, the function is shown to provide an excellent fit to several independent experimental data sets.

• 出版日期2011-3