FLOW
DEFINITIONS
FLUID -
A SUBSTANCE THAT CONTINUOUSLY DESORMS /CLOWS) UNDER AN APPLIED
SHEAR STRESS
-
INCLUDES LIQUIDS + GASES
IDEAL FLUIDS -
INCOMPRESSIBLE
-
NO VISCOSITY
0JLUIDS
8 ...
NEWTONlAN-The VISCOSITY OS THE JLUID REMAINS CONSTANT ,
NO MATTER THE
AMOUNT OS STRESS APPLIED TO IT
NON-NEWTONIAN-VISCOSITY VARIES DEPENDING ON THE AMOUNT OS STRESS
APPLIED TO THE CLUID
RTIES
Of GLUIDS ...
VISCOSITY- RESISTANCE TO TUE CLOW OS A SLUID
SHEAR RATE -
THE RATE AT WHICH SHEAR DECORMATION IS APPLIED
IUELOCITY GRADIENT)
LAWS
-
PASCAL'S (AW -
A PRESSURL CHANGE AT ANY POINT IN A CONCINED INCOMPRESSIBLE JLUID
IS TRANSMITTED THROUGH THE GLUID SUCh THAT THE CHANGE OCCURS
EVERYWHERE
, HYDROSTATICS
-SSURE
X
= p
PRESSURE
I
INCREASES WITH DEPTH . . .
->
You
PROOF :
JORCE BALANCE
:
PZ+dZA
=
PEA +
My (6=
PA)
Pz A PzX+ gAdE (m pv)
= =
+
dZ
do(
Pz)
-
=
g
o
- Pg
Tozxoz
=
I op =
pg) dZ
-P =
pg8Z
↳gn
US HEAD
SURE
-> HEAD IS WHEN PRESSURE IS EXPRESSED AS A LENGTH
* = =
nen
Of PRESSURE
S
DYNAMIC PRESSURE 9 ,
-> THE MEASURE Of KINETIC ENERGY
PRESSURE BEING PER UNIT VOLUME
Yonsn
MEASURED
q =
=
du
ATMOSPHERIC
PRESSURE
->
THE SUM OS THE DYNAMIC AND STATIC
VACUUM -
PRESSURES : THE TOTAL PRESSURE
IUT=P+
PGAUGE =Po
DEFINITIONS
FLUID -
A SUBSTANCE THAT CONTINUOUSLY DESORMS /CLOWS) UNDER AN APPLIED
SHEAR STRESS
-
INCLUDES LIQUIDS + GASES
IDEAL FLUIDS -
INCOMPRESSIBLE
-
NO VISCOSITY
0JLUIDS
8 ...
NEWTONlAN-The VISCOSITY OS THE JLUID REMAINS CONSTANT ,
NO MATTER THE
AMOUNT OS STRESS APPLIED TO IT
NON-NEWTONIAN-VISCOSITY VARIES DEPENDING ON THE AMOUNT OS STRESS
APPLIED TO THE CLUID
RTIES
Of GLUIDS ...
VISCOSITY- RESISTANCE TO TUE CLOW OS A SLUID
SHEAR RATE -
THE RATE AT WHICH SHEAR DECORMATION IS APPLIED
IUELOCITY GRADIENT)
LAWS
-
PASCAL'S (AW -
A PRESSURL CHANGE AT ANY POINT IN A CONCINED INCOMPRESSIBLE JLUID
IS TRANSMITTED THROUGH THE GLUID SUCh THAT THE CHANGE OCCURS
EVERYWHERE
, HYDROSTATICS
-SSURE
X
= p
PRESSURE
I
INCREASES WITH DEPTH . . .
->
You
PROOF :
JORCE BALANCE
:
PZ+dZA
=
PEA +
My (6=
PA)
Pz A PzX+ gAdE (m pv)
= =
+
dZ
do(
Pz)
-
=
g
o
- Pg
Tozxoz
=
I op =
pg) dZ
-P =
pg8Z
↳gn
US HEAD
SURE
-> HEAD IS WHEN PRESSURE IS EXPRESSED AS A LENGTH
* = =
nen
Of PRESSURE
S
DYNAMIC PRESSURE 9 ,
-> THE MEASURE Of KINETIC ENERGY
PRESSURE BEING PER UNIT VOLUME
Yonsn
MEASURED
q =
=
du
ATMOSPHERIC
PRESSURE
->
THE SUM OS THE DYNAMIC AND STATIC
VACUUM -
PRESSURES : THE TOTAL PRESSURE
IUT=P+
PGAUGE =Po
