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
The Resistance to Theory The Resistance to Theory "The Resistance to Theory" is an essay by Paul de Man (1919–83), a renowned literary critic and theorist belonging to the Yale School of Deconstruction, which appeared in "Yale French Studies" 63 (1982) and was widely anthologized. The essay later became part of the book by the same name. The essay remains a key statement in poststructuralist approaches to literary studies. Paul de Man says that the essay was written at the request of the Committee on the Research Activities of the Modern Language Association as a contribution to a collective volume entitled "Introduction to Scholarship