Shear flow themselves. In a shearing flow, adjacent layers of fluid move parallel to each other with different speeds. Viscous fluids resist this shearing motion. For a Newtonian fluid, the stress exerted by the fluid in resistance to the shear is proportional to the strain rate or shear rate. A simple example of a shear flow is Couette flow, in which a fluid is trapped between two large parallel plates, and one plate is moved with some relative velocity to the other. Here, the strain rate is simply the relative velocity divided by the distance between the plates. Shear flows in fluids
Physics of Fluids former continued under its original name, "Physics of Fluids". "Physics of Fluids" was originally published by the American Institute of Physics in cooperation with the American Physical Society's Division of Fluid Dynamics (APS-DFD). In 2016, the American Physical Society founded its own journal "Physical Review Fluids". From 1985–2015, "Physics of Fluids" published the "Gallery of Fluid Motion", containing award-winning photographs, images and visual streaming media of fluid flow. Since 2016, the "Gallery of Fluid Motion" is published by the American Physical Society. With funding from the American Institute of Physics the annual "François Naftali Frenkiel Award" was established by the