Vlaero Tutorial
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Transcript of Vlaero Tutorial
There are
are discus
Begin wit
This sectio
and select
compone
e multiple cate
ssed in detail
h lattice com
on contains a
t “New Comp
nts” tree as s
VLAERO
egories that m
below.
ponents:
all of the flat v
ponent” to be
shown.
O PRESEN
must be defin
vortex panels
egin creating
NTATION
ned in VLAERO
s that are used
panels. A new
N SUMM
O to produce
d to approxim
w component
MARY
a decent res
mate the stru
t will appear u
ult. All of the
cture. Right c
under the “la
ese
click it
attice
This is now
compone
w a panel wit
nt” to define
th no definitio
the propertie
on. Right click
es of this pan
k this unname
nel such as siz
ed componen
ze, shape, and
nt, and select
d location.
t “edit
Note the
demonstr
character
If you do t
paramete
One impo
the mode
Model Pro
sections on th
rated in the V
istics:
this, it will cre
ers such as ch
ortant parame
el represents a
operties” as s
he bottom of
VLAERO prese
eate a panel w
ord, dihedral
eter in VLAER
a full model o
shown.
f this menu: P
entation, it all
with the “spa
, taper ratio,
RO that must
or a half mod
Point editor, p
ows the pane
an” length spe
etc. can be d
be modified b
el. This param
planform edit
els to be defin
ecified as sho
defined.
before creati
meter can be
tor, etc. Plan
ned in terms
own above, an
ng the wing is
specified und
editor was
of wing
nd the variou
s whether or
der “Model—
us
not
—
To set the
Selecting
create on
tutorial w
available
Now that
be half of
under the
e model to fu
full model wi
ly half of the
will use the ful
for use with t
the model is
f a wing if you
e “TITLE” sect
ll or half mod
ill require you
model, the o
ll model confi
the lattice co
set to full mo
u simply put in
ion.
del, make the
u to create th
other half will
iguration so a
mponents.
odel, go back
n a value for t
selection sho
e whole mod
be mirrored—
as to demons
to the panel
the span and
+
own below:
del. Selecting
—this is good
strate some u
properties d
chord length
half model w
d for symmet
seful transfo
ialog box. Ma
h. Make sure
will require yo
ric structures
rmation featu
ake a wing—i
you give it a n
ou to
s. This
ures
t will
name
You will achieve the paanel below.
Now this
select “du
panel must b
uplicate comp
e mirrored to
ponent” to cre
o create the o
eate a new la
other wing. Ri
attice compon
ight click the
nent.
first lattice coomponent, a
nd
You will e
duplicated
shown in
mirror co
nd up with an
d component
the above fig
mponent. It w
nother lattice
t by right click
gures. Then, r
will mirror the
e component
king on it and
right click this
e component
of the same
d changing pu
s component
t and your win
name and pa
utting its new
again, select
ng structure w
anel. Now, ren
name in the
component t
will be nearly
name this
title box, as
tools, and the
y complete.
en
This will m
Reference
compone
mirror the com
e parameters
nts, select co
mponent and
must be spe
mponent too
you will end
cified to thes
ols, and then
up with a ful
e two panels
“calculate ref
ll wing.
s. To do this, r
ference param
right click on
meters.”
one of the lat
ttice
When you
model.
u do this, you will see a diaalog box with various paraameters of thee panel sectioon. Click appl
y to
Only do th
to model
will not w
Once you
structure
airfoil.” Yo
“edit airfo
his for the RIG
will apply thi
work—you wil
do this, you
as a flat plate
ou will then s
oil.” You will t
GHT part of th
s information
l see a planfo
are ready for
e. To apply an
see an unnam
then see the e
he model. VLA
n to the entire
orm area of z
r analysis. If yo
n airfoil, right
med airfoil und
edit airfoil dia
AERO defines
e model—att
zero. Rememb
ou apply no a
t click on the “
der the airfoi
alog box.
s things from
tempting this
ber, right side
airfoil, then th
“airfoil sectio
l sections tre
right to left,
on the left la
e only.
he program w
ons” tree, and
e. Right click
so clicking ap
attice compon
will model the
d click “new
this, and sele
pply
nent
e
ect
You can m
which is t
text file co
manually type
he only pract
ontaining airf
e in points to
tical way to go
foil points. On
define your a
o unless you
nce you do, y
airfoil section,
are creating a
ou should see
, or you can l
a custom airf
e this:
oad the point
foil. Load the
ts from a file—
points from a
—
any
Fill in the
defined. N
select “ed
dropdown
title section w
Now, this airf
dit componen
n list for the o
with whateve
oil must be a
nt.” Then nav
outboard AND
er name you w
pplied to the
vigate to the a
D inboard sid
wish to give y
panels. Right
airfoils and tw
es of the win
your airfoil, an
t click on you
wist section, a
g.
nd click okay.
ur right lattice
and select yo
. This airfoil is
e component,
ur airfoil from
s now
, and
m the
Do this fo
be prepar
or both lattice
red. Click on t
e components
the new stand
s of your wing
dard job butt
g. You have n
on on the low
ow defined y
wer left corne
your wing full
er:
y. A job must
t now
This will c
Right click
dialog box
For this tu
moment c
number, a
Reynolds
method.”
tutorial. T
create an unn
k on this unna
x:
utorial, the to
coefficients a
and an angle
number—bu
It will have n
The final job c
amed job und
amed job, and
otal forces and
long with a l
of attack, and
t, observing t
no effect on t
configuration
der the stand
d click edit st
d moments w
ot more. Clic
d then click o
the note belo
he calculation
looks like thi
dard jobs tree
andard job. T
will be analyze
k “Obtain tot
okay. The RE M
ow it, it is only
ns performed
s:
e.
This will bring
ed—which wi
tal forces and
MAC box app
y used for “ca
d by the job—
g up the edit s
ill yield the lif
moments,” d
ears to allow
arlsons attain
—at least thos
standard job
ft, drag, and
define a mach
w you to enter
able suction
se used in this
h
r a
s
This will a
the run jo
This will r
perform c
plot of dC
analyze the st
ob button:
un the job, an
calculations o
Cp—The diffe
ructure at ma
nd produce so
on only jobs w
rences betwe
ach .2, and an
ome results.
with no results
een the upper
n angle of att
For multiple
s yet (i.e. red
r and lower p
ack of 5 degr
jobs, selectin
box). The w
pressure coeff
rees. Press ok
ng “Execute A
wing will imme
ficients.
kay, and then
All Jobs” will
ediately beco
click
ome a
To view th
CL, CD, ET
he job summa
TC.
ary, click the job summary
y button—it reveals the infformation shown, such as
total
The full o
the above
total coef
To plot th
It will pro
utput can be
e figure. This g
fficients.
he CP values o
duce the belo
accessed by
gives detailed
on the wing st
ow plot:
pressing the “
d information
tructure itself
“view full out
n about the va
f, click the plo
tput” button
alues on each
ot button:
in the bottom
h panel, along
m left corner
g with all of th
of
he
Clicking o
will chang
A useful f
you just m
angle of a
n the “Dcp” w
ge the plotted
eature is the
made, click sta
attack range y
word on top o
d value.
ability to crea
andard job to
you wish to an
of the legend,
ate multiple j
ools, and then
nalyze, and th
, shown in th
jobs—such as
n “create alph
he increment
e upper right
s an alpha seq
ha sweep.” Th
t desired, as s
t corner of th
quence. Right
his will promp
shown.
e above figur
t click on the
pt you for the
re,
job
e
You will thhen have jobss at each angle of attack y
ou require. E
xecute them,
, and get the data.
The final u
This will a
you choos
excel, and
This is a u
useful feature
allow you to c
se. For excel,
d paste:
useful way to
e is the expor
copy ALL of yo
just select th
quickly extra
rt data tool, fo
our jobs to ex
he copy to clip
ct data.
ound under:
xcel, or export
pboard option
t the data to
n (excel) opti
a file for use
on above, an
in whatever
d then go int
way
to
To find th
Select “Vi
Scroll dow
above, wi
e dCp for eac
ew Full Solve
wn to the sect
th wingtip da
ch panel, first
er Output” aft
tion with the
ata in the cen
t set up a win
ter running a
header “** D
ter rows, and
g geometry u
“Total Forces
DELTA CP**”.
d wing root da
using the met
s and Momen
The dCp dist
ata in the top
thods discuss
nts” job.
tribution is o
p and bottom
sed previously
rganized as s
rows.
y.
hown
To export
file.
t the data to MMicrosoft Exccel, copy and paste the DE
LTA CP data iinto notepad,, and save as
a .txt
Open Mic
txt file con
Check the
crosoft Excel,
ntaining the D
e box with “D
and under th
DELTA CP dat
elimited”, an
he “Data” tab
ta.
d click on “Ne
b, click on “Fr
ext.”
rom Text”. Navigate to the previously
saved
Check the
resulting d
e boxes “Spac
dialogue box.
ce” and “Trea
. The data sh
at consecutiv
hould now be
ve delimiters
imported int
as one”, and
to Excel.
d select finishh. Press OK o
on the