For a fluid moving between two plane parallel surfaces—where the width is much greater than the space between the plates—then the characteristic dimension is equal to the distance between the plates. This is consistent with the annular duct and rectangular duct cases above, taken to a limiting aspect ratio. Couette flow is frequently used in undergraduate physics and engineering courses to illustrate shear-driven fluid motion. A simple configuration corresponds to two infinite, parallel plates separated by a distance ; one plate translates with a constant relative velocity in its own plane. Neglecting pressure gradients, the Navier–Stokes equations simplify to

Example2 Turbulent Flow between Parallel Plates

WebWe need only select a Reynold's number suitable for laminar flow, use it to determine appropriate U and L, and give these numbers, along with the geometry, to Phoenics to see if the correct pressure gradient and … WebThe Reynolds number is defined in this case in terms of the constant relative motion U 0 i between the plates, R e = U 0 d / ν, where i is the unit vector parallel to the plates and ν is the kinematic viscosity of the fluid. Using the distance d between the plates as length scale and d 2 / ν as timescale, the basic equations can be written ... gtfo is boring

Laminar flow - Wikipedia

WebApr 19, 2015 · Indian Institute of Technology Delhi. Reynolds number should represent the flow condition. For pipe flow, the characteristic length is taken as D (diameter of pipe). For the free surface flow like ... WebFind step-by-step Engineering solutions and your answer to the following textbook question: A fluid of specific gravity 0.90 flows at a Reynolds number of 1500 between parallel plates spaced 0.3 m apart. The velocity 50 mm from the wall is 3 m/s. Calculate the flow rate and the velocity gradient at the wall.. gtfo is crossplay