Fluid Mech Intro
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Transcript of Fluid Mech Intro
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Fluid
a fluidis a substance that continually deforms
(flows) under an applied shear stress. Fluids are a
subset of the phaseof matter and include liquids,
gases, plasmasand, to some extent, plastic solids.Fluids can be defined as substances which has ero
shear modulusor in simpler terms a fluid is a
substancewhich cannot resist any shear force
applied to it.
http://en.wikipedia.org/wiki/Deformation_(mechanics)http://en.wikipedia.org/wiki/Shear_stresshttp://en.wikipedia.org/wiki/Phase_(matter)http://en.wikipedia.org/wiki/Liquidhttp://en.wikipedia.org/wiki/Gashttp://en.wikipedia.org/wiki/Plasma_(physics)http://en.wikipedia.org/wiki/Plasticity_(physics)http://en.wikipedia.org/wiki/Substanceshttp://en.wikipedia.org/wiki/Shear_modulushttp://en.wikipedia.org/wiki/Substancehttp://en.wikipedia.org/wiki/Shear_forcehttp://en.wikipedia.org/wiki/Shear_forcehttp://en.wikipedia.org/wiki/Substancehttp://en.wikipedia.org/wiki/Shear_modulushttp://en.wikipedia.org/wiki/Shear_modulushttp://en.wikipedia.org/wiki/Substanceshttp://en.wikipedia.org/wiki/Plasticity_(physics)http://en.wikipedia.org/wiki/Plasma_(physics)http://en.wikipedia.org/wiki/Gashttp://en.wikipedia.org/wiki/Liquidhttp://en.wikipedia.org/wiki/Phase_(matter)http://en.wikipedia.org/wiki/Shear_stresshttp://en.wikipedia.org/wiki/Deformation_(mechanics) -
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!echanics
Mechanics is the branch of scienceconcerned with
the beha"ior of physical bodieswhen sub#ected to
forcesor displacements, and the subsequent effects
of the bodies on their en"ironment.
http://en.wikipedia.org/wiki/Sciencehttp://en.wikipedia.org/wiki/Physical_bodyhttp://en.wikipedia.org/wiki/Forcehttp://en.wikipedia.org/wiki/Displacement_(vector)http://en.wikipedia.org/wiki/Displacement_(vector)http://en.wikipedia.org/wiki/Forcehttp://en.wikipedia.org/wiki/Physical_bodyhttp://en.wikipedia.org/wiki/Science -
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Branch of !echanics
Statics Dynamics
Rigid Bodies
(Things that do not change shape)
Deformable Bodies
(Things that do change shape)
Incompressible
Compressible
Fluids
echanics
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Fluid !echanics
Fluid mechanicsis the branch of physicsthat studies
fluids(liquids, gases, and plasmas) and the forceson
them.
Fluid mechanics can be di"ided into
fluid statics, the study of fluids at rest$ fluid
kinematics, the study of fluids in motion$ and
fluid dynamics, the study of the effect offorces on fluid motion.
http://en.wikipedia.org/wiki/Physicshttp://en.wikipedia.org/wiki/Fluidhttp://en.wikipedia.org/wiki/Liquidhttp://en.wikipedia.org/wiki/Gashttp://en.wikipedia.org/wiki/Plasma_(physics)http://en.wikipedia.org/wiki/Forcehttp://en.wikipedia.org/wiki/Fluid_staticshttp://en.wikipedia.org/wiki/Kinematicshttp://en.wikipedia.org/wiki/Fluid_dynamicshttp://en.wikipedia.org/wiki/Fluid_dynamicshttp://en.wikipedia.org/wiki/Kinematicshttp://en.wikipedia.org/wiki/Fluid_staticshttp://en.wikipedia.org/wiki/Forcehttp://en.wikipedia.org/wiki/Plasma_(physics)http://en.wikipedia.org/wiki/Gashttp://en.wikipedia.org/wiki/Liquidhttp://en.wikipedia.org/wiki/Fluidhttp://en.wikipedia.org/wiki/Physics -
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Fluid !echanics % &hem 'ngg
he Fluid !echanics is essential in ChemicalEngineeringbecause the ma#ority of chemical !
processing operations are conducted either partly or
totally in the fluid phase. 'xamples of suchoperations abound in the Biochemical, chemical,
energy, fermentation, materials, petroleum,
pharmaceutical, polymers and wasteprocessing
industries.
water and gas turbines, pumps, engines, pipes,
"al"es, bearings, hydraulic systems, and others
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Field of Fluid !echanics can be di"ided into * branches+
Fluid tatics+ mechanics of fluids at rest
-inematics+ deals with "elocities and streamlines wo
considering forces or energy
Fluid /ynamics+ deals with the relations between
"elocities and accelerations and forces exerted by or
upon fluids in motion
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/imensions and 0nits
Before going into details of fluid mechanics,
we stress importance of units 1n 0., two primary sets of units are used+
! 2. 1 (ysteme 1nternational) units
! 3. 'nglish units
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0nit able
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F401/ 5675'61'
'"ery fluid has certain characteristics by whichits physical conditions may be described.
8e call such characteristics as the fluid
properties.
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