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Books

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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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