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Lecture
F2
Mud:
Hydrostatics
(42
respondents)
1.
Is
C
p
in
Fluids
related
to
the
c
p
in
Thermo,
such
as
in
U
=
c
p
T
?
(1
student)
This
is
a
notation
cooincidence.
They
are
completely
unrelated.
2.
How
do
p
,
V
,
etc.
all
relate?
What’s
static
and
dynamic
p?
(3
students)
See
the
Lab7
Lecture
Notes
and
Mud.
3.
Why
does
area
vary
as
size
2
?
(1
student)
This
is
just
a
matter
of
geometry.
I
both
the
length
and
width
double,
then
the
product
length
×
width
quadruples.
C
4.
Not
clear
what
C
p
really
is.
It’s
not
intuitive.
(4
students)
p
is
one
example
of
a
dimensionless
quantity
,
which
we
always
seek
when
analyzing
physical
situations.
C
L
is
another
example.
These
dimensionless
quantities
are
always
the
most
general
and
simplest
way
to
describe
and
quantify
a
problem.
For
example,
a
fullsize
airplane
and
a
wind
tunnel
model
at
the
same
angle
of
attack
will
have
diﬀerent
pressures
and
lifts,
but
their
C
p
’s
and
C
L
’s
will
be
the
same
if
only
a
few
conditions
are
met,
such
as
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This note was uploaded on 01/28/2012 for the course AERO 16.01 taught by Professor Markdrela during the Fall '05 term at MIT.
 Fall '05
 MarkDrela

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