Understanding Rotational Rheometers

>This course covers the comprehensive understanding of Non-Newtonian fluids and their transport phenomena. It starts with a recap of the basics, including shear stress and shear rate, and the use of capillary viscometers. The course then delves into the potential errors in using capillary viscometers and their rectification. It further introduces the concept of rotational rheometers, explaining their role in causing deformation in fluids and their use in measuring shear stress and shear rate. The course also covers the measurement of normal stress differences, which is not possible with capillary viscometers. It concludes with the measurement techniques for shear stress and shear rate in scenarios where the gap between the cylinders is either very narrow or very large.