Test: Viscous Flow - 3 - Mechanical Engineering MCQ

Which one of the following is correct for the velocity distribution across a section of two fixed parallel plates having viscous flow, where t is the distance of parallel plate

What would be the shear stress distribution across a section of two fixed parallel plates kept at a distance t apart and having a viscous flow

An incompressible fluid (kinematic viscosity, 7.4 x 10^-7 m²/s, specific gravity, 0.88) is held between two parallel plates. If the top plate is moved with a velocity of 0.5 m/s while the bottom one is held stationary, the fluid attains a linear velocity profile in the gap of 0.5 mm between these plates; the shear stress in Pascals on the surface of top plate is

The maximum velocity of a one-dimensional incompressible fully developed viscous flow, between two fixed parallel plates, is 6 ms^-1. The mean velocity (in ms^-1) of the flow is

The shear stress developed in a lubricant oil viscosity 9.81 poise, filled between two parallel plates 1 cm apart and moving with relative velocity of 2 m/sec is

The drag coefficient for laminar flow varies with reynolds number (Re) as

The transition Reynolds number for flow over a flat plate is 5 x 10⁵. What is the distance from the leading edge at which transition will occur for flow of water with a uniform velocity of 1 m/s (for water the kinematic viscosity v = 0.86 x 10^-6m²/s)