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Course Co-ordinated by :
IIT Kanpur
Course Available from :
15-May-2012
NPTEL
Chemical Engineering
Fluid Mechanics (Web)
Pressure-drop: Ergun's equation
Modules / Lectures
Introduction
Definition of a fluid and Newtons' law of viscosity
Rate of strain, Non-Newtonian fluid
Fluid Statics
Pascal's theorem, Basic equation
Basic equation: derivation, pressure variation in an incompressible fluid
Pressure variation in two immiscible fluids, manometer, barometer
Steady and unsteady state
Hydrostatic forces on submerged bodies
Calculation of vertical component
Calculation of horizontal component, buoyancy
Examples
Fluid Dynamics
Lagrangian and Eulerian approaches; Euler's acceleration formula
Reynolds Transport Theorem
Control mass, control volume, mass-, momentum-, kinetic energy balance
Conservation of mass and examples
Continuity, Momentum theorem
Momentum theorem examples
Equation of motion
Navier-Stokes Equation
Couette and Poiseuille flows
Tubular laminar flow and Hagen-Poiseuille equation
Macroscopic momentum balance for pressure-drop in a tubular flow
Energy conservation
Mechanical energy balance
Bernoulli equation and energy applications
Minor loss, kinetic energy correction factor
Flow measuring devices
Major loss in pipe flow
Examples on Bernoulli equation
Centrifugal pump: characterisitcs, efficiency, NPSH
Flow at low and high Reynolds numbers
Creeping flow, Stokes-law and terminal velocity
Flow at high Reynolds numbers (Boundary layer theory)
Examples on drag
Packed beds
Drag, particles settling
Pressure-drop: Ergun's equation
Examples on pressure drop calculations
Fluidization
Minimum fluidization velocity
Examples on fixed and fluidized beds
Filtration
Plate and frame press filter, Rotary filter
Principles of filtration, constant pressure and volume filtration
Example
Dimensional analysis and similitude
Buckingham Pi-theorem
Geomteric and dynamic similarities, examples
Agitation
Equipment, flow patterns, power requirement
Cyclone
Equipment, theoretical cut diameter, efficieny
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