, Density Busyancy
P m
=
Fz = =V59
Pressure use use
density volume
scalar
- F of fluid of
object
P =
A
f
N/m2 =
Pa Apparent WeightEn
~
Gange Pressure Apparent Weight mg-PV
=
Pabs =
Pgange +
Patm PsUs
In a
sinking object : Vs =
Vg = V
Pgange *
Jabs- Patm ↑ object is fully submerged
: Apparent Weight =
(Ps-es) Vg
Pgange Pgh =
If Apparent Weight > o , then object sinks
Pascal's Principle :
A Dropping Rock off Boat
change in
pressure h
, > ha hithe hakz
applied to a fluid in
^
vs Us
λ
transferred undiminished Us
Es > Us , , Vg Vs
to all parts of fluid
Reynold's Number
Hydraulics
Reynold's Number depends on :
Equal pressure : " Flow speed
Amplification
fs (
皆 of Chanel size
F0 .
)← thesmall
force
2 .
3
3 fluid density
Archimedes' Principle 4 . Fluid Viscosity
The volume of a
displaced
fluid , Us , is the volume of
the fluid pushed aside when
an object is embedded in the fluid
P m
=
Fz = =V59
Pressure use use
density volume
scalar
- F of fluid of
object
P =
A
f
N/m2 =
Pa Apparent WeightEn
~
Gange Pressure Apparent Weight mg-PV
=
Pabs =
Pgange +
Patm PsUs
In a
sinking object : Vs =
Vg = V
Pgange *
Jabs- Patm ↑ object is fully submerged
: Apparent Weight =
(Ps-es) Vg
Pgange Pgh =
If Apparent Weight > o , then object sinks
Pascal's Principle :
A Dropping Rock off Boat
change in
pressure h
, > ha hithe hakz
applied to a fluid in
^
vs Us
λ
transferred undiminished Us
Es > Us , , Vg Vs
to all parts of fluid
Reynold's Number
Hydraulics
Reynold's Number depends on :
Equal pressure : " Flow speed
Amplification
fs (
皆 of Chanel size
F0 .
)← thesmall
force
2 .
3
3 fluid density
Archimedes' Principle 4 . Fluid Viscosity
The volume of a
displaced
fluid , Us , is the volume of
the fluid pushed aside when
an object is embedded in the fluid
