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Basic concept (2)

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Fluid
physic thatdealwith body underinfluenceby forces
mechanics
Easy
Fig
dynamition
behavior
offluid at
rest
or motion
Application force
in L G
Fluid
substance
gas state
in liquid
diff inter forabetween substance diff
result
constant
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staina
F
deformationangle
constant shear force
Solid
applied
stop deforming at some angle
pt
maximum
liquid nonstopdeforming until reach constant rate of strain
direction
jagnik
stress
force
Normal stress
shearstress
per
I
unit area
acting
tangential
on per unitarea
component
g
Pressure
1
normalstress applied
Bernoulli's
Mechanical
equation
part to
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g
Sw
Into
slum
energy
another
conserved
asfluid move fromone
part in asystem
potential
of the mechenergyis same
fluid
rest
A
z
only the
Linear momentum
to object at
in
before
after
ofeachenergy varies m process
proportional
force
relation
with mechanic
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Classification of fluid flows Viscous vs Inviscid
Ftw
The
cause dot pattern
offlow
region
of fluid flow
Regions
offlow
which viscous force must
be
taken
in consideration
Buisson region which
Inform
viscous force negligibly
compare with external force
fightregion
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large Area
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velocity of fluid effect by viscous force influid
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yp
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Internal flow
vicosity
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that
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compressible
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t
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Material
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heat ratio
gas
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incompressible
of Mach num
analysis
speed
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subjected
density offlow
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close effect
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a
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at
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netforceexert on
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t
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