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JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY
HYDERABAD
II Year B. Tech. AE – I semester T P C
4+1* 0 4
MECHANICS OF FLUIDS
UNIT – I
Fluid Properties And Fluid Statics: Density, Specific weight, Specific gravity, viscosity, Vapour pressure, compressibility, Pressure at a point, Pascal’s law, pressure variation with temperature, density and attitude. Hydro static law, Piezometer, Simple and differential manometers, pressure gauges, total pressure and center of pressure – plane, vertical and inclined surfaces. Buoyancy and stability of floating bodies.
UNIT – II
Fluid Kinematics : Stream line, path line, streak line, stream tube, classification of flows, steady, unsteady, uniform, non-uniform, laminar, turbulent, rotational, irrotational flows, one, two and three dimensional flows – Continuity equation in 3D flow, stream function, velocity potential function.
UNIT – III
Fluid Dynamics : Surface and Body forces – Euler’s and Bernoulli’s equation derivation, Navierstokes equation (explanation only) Momentum equation - applications, vortex – Free and Forced. Forced vortex with free surface.
UNIT – IV
Similitude and Flow Measurement – Similarly laws, distorted models. Flow through Venturimeter and Orificemeter, flow through notches and weirs, Viscometers, Hot wire Anemometers, Pitot tube, Flow through nozzles.
UNIT – V
Approximate solutions of N.S. Equations - Boundary layer- concepts, Prandtl contribution,Characteristices of boundary layer along a thin flat plate Von-karman’s momentum integral equation (No derivation), laminar and turbulent Boundary layers,BL in transition,separation of BL,control of BL separation,flow around submerged objects, Drag and lift – types of drag – magnus effect.
UNIT – VI
Closed Conduit Flow: Characteristics of real fluids – Reynolds experiment –Darcy’s equation, Minor losses – pipes in series – pipes in parallel – Total energy line and hydraulic gradient line.
UNIT VII
Exact Solutions of Navier Stokes Equations. Flow between parallel plates, flow through long tubes - Fow through inclined tubes, Turbulent flow, variation of friction factor with Reynold’s Number
– Mody’s chart.
UNIT VIII
Flow of Compressible Fluid: Introduction, Thermodynamic relations, basic equations of compressible flow, velocity of sound wave in a fluid for isothermal and adiabatic process, mach number and its applications, mach angle, Propagation of Pressure waves and stagnation properties
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