Mar 20, 2023 · With a parallel plate viscometer, the shear rate increases as you move radially outward from the center of the plates. This variation in shear rate can sometimes cause measurements to be …

The lower stationary plate is mounted on a very rigid support, and the upper plate can be moved parallel to the lower plate. Before calculating the viscosity, it is necessary to first define the shear stress and …

For oscillatory flows, a simple equation to correct the stress amplitude is obtained in terms of the amplitudes of the torque and shear rate. The parallel-plate geometry is widely used in rheome-try for …

When we measure the rheological properties of a polymer melt using a rotational-type rheometer, e.g. the parallel plate type or the cone-and-plate type, it is convenient to use the disk sample prepared by …

In a parallel plate rheometer for a fluid, such as oils or polymers, the material is confined between the two shearing plates by capillary forces and does not flow out.

Besides a smooth surface finish, all parallel plates measuring geometries are also available with a sandblasted or serrated finish to reduce slippage effects during measurements.

Choose the right rheology measuring geometry with our expert tips! Ensure accurate results for your samples—optimize your testing today.

In this study, we examine the dynamics of the velocity field for parallel-plate and cone–plate flows of Newtonian fluids by finding analytical solutions of the Navier–Stokes equation in the creeping flow limit.

From the McGill website (2006): Hee Eon Park, first-year postdoc in Chemical Engineering, works on a high-pressure sliding plate rheometer, the only instrument of its kind in the world.

Jun 7, 2019 · In this work we analyze in detail the stress correction for the main rheometric experiments, and discuss when it is needed. To this end, we performed different tests with a commercial hair gel...