The length of the tube necessary for the boundary layer to reach the centre of the tube and for fully developed flow to be established is called the _____________ length?

Related Mcqs:

Laminar flow is characterised by the nonexistence of_________________?

A. Pressure fluctuation B. Eddies C. Deviating velocities D. All A., B. & C....

In power law, δ = [A (du/dy)2 + B] then the fluid is__________________?

A. Newtonian B. Dilatant C. Thixotropic D. Rheopectic...

A fluid element has a velocity V = -y2. xi + 2yx2 . j. The motion at (x, y) = (1/√2, 1) is_________________?

A. Rotational and incompressible B. Rotational and compressible C. Irrotational and compressible D. Irrotational and incompressible...

Capillary rise of mercury in a small diameter tube is proportional to (where, d = diameter of the tube, ζ = surface tension of mercury)____________________?

A. d B. 1/d C. ζ D. 1/ζ...

Laminar flow of a Newtonian fluid ceases to exist, when the Reynolds number exceeds___________________?

A. 4000 B. 2100 C. 1500 D. 3000...