Course

Unit 1

Elementary concepts – density, specific weight, specific gravity, viscosity – dynamic and kinematic viscosity – surface tension, capillarity, vapour pressure, compressibility – Compressible and incompressible fluids; Concept of gauge and absolute pressure, measurement of pressure using manometers of different types. Hydrostatic force on plane and curved surfaces, center of pressure; buoyancy and stability of submerged and floating bodies;

Flow types – Unsteady, Steady and non-uniform, laminar and turbulent flows – Reynolds number; Ideal flow – rotational and irrotational, stream function, potential function – Velocity vectors; Path line, streak line and stream line; Derivation of continuity and momentum equation for steady three dimensional flows – Application of one dimensional steady flow; circulation and vorticity; Laminar flow between parallel plates – Taylor-Coutte flow and Poiseulle flow; Flow in closed conduits Laminar flow through circular pipe – Shear stress and velocity profiles; pressure gradient, Hagen-Poiseulle’s equation; Power required to overcome pressure drop; Velocity profile in turbulent flows;

Two dimensional flows – Boundary layer; Boundary layer equation; Blasisus solution for boundary layer flow; boundary layer separation and its control.

Unit 2

Bernoulli’s and Euler’s equations; Application of Bernoulli’s equations to flow meters – Pitot tube, Nozzle, Venturi meter and Orifice meter; Coefficient of discharge for flow meters and velocity measurement;

Concept of friction and friction factor from drag on a flat plate; Friction loss in laminar and turbulent flows, Darcy-Weisbach equation, Moody chart; Minor losses – Pipe fittings and pipe networks, equivalent length for pipe in pipe fittings;

Flow past immersed bodies – drag and lift, drag and lift coefficients, flow though beds of solids, one dimensional motion of particle through fluid, terminal velocity, hindered settling, Fluidization – Conditions for onset of fluidization, Hydraulic radius of porous medium, Porous medium Reynolds number, minimum fluidization velocity; Pressure drop through porous media for spherical and non-spherical particles – Ergun equation; Types of fluidization;

Unit 3

1. Noel de Nevers, Fluid Mechanics for Chemical Engineers, McGraw Hill Inc., 1991
2. Cengel Y. A., and Cimbala J. H, Fluid Mechanics: Fundamentals and Applications, McGraw Hill Publishers, 3^rd Ed., 2013
3. Holland F. A., and Bragg R., Fluid Flow for Chemical Engineers, Butterworth Heinmann, 2^nd Ed., 2002
4. Ron Darby, Chemical Engineering Fluid Mechanics, Marcel Dekker Inc., 2^nd Ed., 2001
5. Frank M. White, Fluid Mechanics, MeGraw Hill Inc., 4^th Ed., 2011