FLUID MECHANICS IMPORTANT TOPICS
MECHANICAL 4TH SEM.
Section-A (Fluid Properties and Fluid Statics), unit-1
Theory:I.
Types of fluid
II.
Concept of continuum
III.
Density, viscosity, surface tension, cohesion force, adhesion force, capillarity and Meta Centre,
(imp)
IV.
Newton’s law of viscosity
V.
Effect of temperature on viscosity (imp)
VI.
Conditions of equilibrium of floating and submerged (IMP)
VII.
compressibility
Derivations:I.
Pascal’s law
II.
Relationship between bulk modulus & pressure (P) for the gas.(IMP)
III.
Hydrostatics law
IV.
Total pressure & centre of pressure for vertical and inclined surface.
Numerical:1.1 to 1.6, 1.8, 1.10, 1.11, 1.12, 1.13, 2.6, 3.1, 3.2, 3.3, 3.6 by R.K Bansal (imp)
Section-A Fluid Kinematics (unit-2)
i.
Eulerian and Lagrangian description of fluid flow (imp)
ii.
stream, streak and path lines
iii.
types of flows
iv.
stream and potential functions (imp)
v.
flow net and its methods of drawing (imp)
Derivation:i.
differential equation of continuity in Cartesian coordinates, (IMP)
ii.
differential equation of continuity in polar coordinates. (IMP)
Numerical:5.1 to 5.5, 5.7, 5.11, 5.12 by R.K Bansal
Section-B (Fluid Dynamics) (unit-3)
Theory:i.
kinetic and momentum correction factors,
Derivation:i.
Euler’s equation (imp)
ii.
Bernoulli’s equation (imp)
iii.
Venturimeter
iv.
Orificemeter
v.
Pitot tube
vi.
Force exerted by a flowing fluid on a pipe bend
Numerical:6.1 to 6.7, 6.9 to 6.14, 6.16, 6.22, 6.23, 6.27 to 6.30 (imp)
Section-B Compressible Fluid Flow (unit-4)
Theory:i.
Mach number and types of according to Mach number and Stagnation properties
ii.
Constant volume and constant pressure process, (imp)
iii.
Isothermal and adiabatic process (imp)
Derivation:i.
Bernoulli’s equation or energy equation for compressible flow
ii.
Continuity equation and equation of state for compressible flow
iii.
Propagation of elastic waves due to compression of fluid
iv.
Propagation of elastic waves due to disturbance in fluid (imp)
Numerical:- 15.1 to 15.5, 15.7, 15.11
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FLUID MECHANICS IMPORTANT TOPICS
MECHANICAL 4TH SEM.
Section-C-Viscous Flow(unit-5)
Theory:Flow regimes and Reynolds’s number,
Derivations:i.
Flow of viscous fluid through circular pipes (Hagen Poiseuille Law)
ii.
Flow of viscous fluid between two parallel plates
a. Both plates are stationary(imp)
b. One plate is moving
iii.
Movement of piston in dash pot
iv.
Expression for relationship between shear stress and pressure gradient for viscous flow (imp)
v.
Show that momentum correction factor and energy correction factor for laminar flow through a
circular pipe are 4/3 and 2.0 respectively. (imp)
Numerical:9.1 to 9.3, 9.7 to 9.9, 9.15, 9.16, 9.20
Flow Through Pipes(unit-6)
Theory:Types of losses in pipe flow (imp)
Hydraulic gradient and total energy lines (imp)
Derivations:Branched pipes;
Equivalent pipe
Power transmission through pipes and conditions of maximum power transmission. (imp)
Numerical:11.1, 11.2, 11.3, 11.9, 11.10, 11.11, 11.14, 11.17, 11.18, 11.35, 11.40, 11.42 (imp)
Section-D- Boundary Layer Flow(unit-7)
Theory:i.
Development of boundary layer (imp)
ii.
Boundary layer separation & its control
iii.
Stream lined & bluff bodies
iv.
Lift and drag on a cylinder
Derivations:i.
displacement, momentum and energy thickness, (imp)
ii.
von-karman momentum integral equation or drag on a flat plate (imp)
Numerical:13.1, 13.2, & 13.5
Turbulent Flow (unit-8)
Theory:i.
Shear stress in turbulent flow
ii.
Prandtl mixing length theory
iii.
hydraulically smooth and rough pipes or boundaries (imp)
Derivations:i.
velocity distribution for turbulent flow (imp)
a. for smooth pipe
b. for rough pipe
ii.
derivation for friction losses in pipe
iii.
friction coefficient of rough and smooth pipe (imp)
Numerical:10.1, 102, 10.3, 10.6, 10.9(imp), 10.10, 10.13, 10.15,
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