Complex fluid`s rheological properties determining method, involves correlating effective and theoretical laws of evolution of radius for fluid to determine rheologic characteristic parameter

摘要

The method involves allowing a fluid flow under pressure through an orifice between two parallel plates (6). An input radius is measured based on time, and the effective law of evolution of radius for fluid is deduced. A relation representing the theoretical law of evolution of radius for fluid is determined from rheological model with low deformation speeds. The laws are correlated to determine a rheologic characteristic parameter. An independent claim is also included for a device for determining rheological properties of a complex fluid.