Laminar Flow, Turbulent Flow & Reynold's Constant (Physics) Video Lecture - Class 11 | Best Video for Class 11

hello students last 10 / come flute
discuss Teresa or feud may have my last
topic pirata uses of barometer manometer
and Pascal slow now today we are going
to discuss about the characteristics of
streamline
the first point is a tangent at any
point
on the streamline
give the direction of velocity
of the fluid particle at that point
second point is to streamline never
intersect each other
now come to the laminar flow
if the lagoon flows over a horizontal
surface
in the form of layers
of different velocities
then the flow of liquid is called
laminar
the particles of one layer do not go to
another layer in this flow
the particles of one layer
do not go to another layer
in general
we can say
the laminar flow
is also a streamlined
next turbulent flow
the flow of liquid in which velocity of
all particles
and its velocity of
Crossing a given point
is not same
in this type of flow
motion of all the particles remain
irregular
in this flow the flow of all the
particles demand jibjab way not in ionic
system
different direction Reynolds number next
topic is
the North number
according to the north
the critical velocity
up a liquid
flowing through a long narrow
to the critical velocity of a liquid
flowing through a long narrow tube is
directly proportional to
the coefficient of viscosity
it means vc proportional to coefficient
of viscosity
second point is
anuska proportional
to the density
row of the liquid
it means vc is directly proportional to
rho
the third point is inversely
proportional to the diameter D of the
tube
of the tube it means again vc is
proportional to sorry in above equation
it is 1 upon grow it is 1 by D it is
inversely proportional not directly
proportional
so from first second and third we can
write vc is proportional to theta upon
roadie for vc is equal to R theta upon
row d
here we see is the critical velocity and
our is the capital r is the Reynold
constant
poor stream line flow for stream line
flow r is less than 2000 for turbulent
flow
r is greater than 2,000 treetops in
between between 2002 3000 it is unstable
it means not define clearly okay