EnSight 10 Basic Training Exercises

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3 Δεκ 2013 (πριν από 3 χρόνια και 6 μήνες)

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1


EnSight 10 Basic Training Exercises

Exercise 1
: Color the Comanche helicopter


1.

Start EnSight 10 and press the
Cancel

button on the Welcome screen

2.

Click on
File

-
>
Open

and select the
Simple Interface

(see the image below

on the left
)

3.

Set the
File Type

to
Wavefront OBJ

(at the end of the list) and go to the
../
EnSight 10 Training/
Exercises/EnSight Basic Exercises/Exercise 1
-

Comanche/Comanche.obj

(see the image below

on the left
)























4.

Select each part or groups of parts and click the Color Wheel icon

on the Quick Edit Menu
to change the color, shading type and opacity if needed

(see the image above

on the right
)

5.

C
lick the
More

button under the color swatches and c
olor the
body of the
Comanche with a
military green color; for instance Red = 17, Green = 28 and Blue = 17

6.

Set the opacity of the cockpit glass to 0.65 and
color

it with a medium gray color

7.

Color the 2 seats with a tan color
;

for instance R
ed
=

140, Green = 120 and Blue = 60

8.

The end result should look like the Comanche pictured here









3

2

4

2


Exercise 2: Create streamlines
,

p
article traces
and a clip plane
around the Chevrolet Traverse SUV


1.

Click on
File

-
>
Open

and
click the
OK

button on the New Case menu and keep the default of
Replace Currently Loaded Data

(see the image below on the left)
;

select the
Simple Interface

again














2.

Set the
File Type

to
Case

and go to the
../
EnSight 10 Training/
Exercises
/EnSight Basic
Exercises/Exercise 2
-

GM Traverse/
gmt561
-
psd
-
drag.case


3.

Hide parts 1
-
9 and 307
-
311

by either clicking the eye icon

or by right clicking and selecting
Hide

(see the image above on the right)

4.

Rotate the car so the Z
-
axis is point
ing

up and fit the geometry to the viewport
by clicking the

icon on the Quick Settings toolbar


5.

Switch on the Line Tool by clicking on the Line Tool icon
; you probably won't see the Line
Tool because
it's

hidden

inside of the car



Go to the Parts List and

right click on any part and click
Part

Select

-
>
Visible
, this selects
all the visible parts in the model



Click on the eye icon on the Feature Toolbar

and switch off the visibility for all
visible parts

or right click and select
Hide
; the Line Tool
is now visible



Drag the Line Tool by its center and adjust the tool by its end points so it's in front of the
car
;
make sure the Line Tool is in the correct position by rotating the view or by using
the side, front and top view of the car;
we'll use the Li
ne Tool to emit streamlines from



Click the eye icon again to make the car visible again
or right click and select
Show




Make sure the visible parts are still selected in the Parts List and color all visible parts
gr
e
y, for instance by right clicking in th
e Parts List or on the car and selecting
Grey


6.

Select parts 1
-
9 in the Parts List

7.

Click the Particle Traces icon on the Feature Toolbar

and the Particle Traces menu is
displayed

8.

Take the default settings but u
nder
Emit From

select the
Line

Tool

and
click on the
Create with
Selected Parts

button;
please note the
*Working*

message in the Message Area
in

the lower
left hand corner of the EnSight window

while EnSight is calculating the streamlines
;

after a few
seconds

you should see some streamlines but
if you don't, make sure the Line Tool is in the fluid
domain
by placing it closer to the car

1

3

3


9.

Try

some
of the
options such as:
#

P
oints

(change to 25 for instance)
,

set the
Direction

to
+/
-


10.

Color the Particle Trace Part by a variable, for instance the pre
ssure_coefficient, by either using
the Color Wheel, right clicking on the
Particle Trace P
art or by
using
drag
-
and
-
dro
p from the
Variable Object List

11.

Modify the range of the color palette by moving the cursor over the legend and dragging the
min and max
values

-

make the range from 1.0 to
-
1.0

(see the image on the left below)
; the
model should look something like the picture below
on the right


















12.

Left click on the streamlines
in the graphics window
and an 8
-
arrow icon

will appear
; left
click on these arrows (the cursor will change to a pointing finger) and drag the streamlines
interactively (it's like having a s
moke generator in a wind tunnel
)
















13.

Double click the Particle Trace

Part in the Parts List; t
oggle the
Animate

button
on the Edit
Attributes menu
and click the
Animate Settings

button; under
Tracer Head Representation

select
Arrows
; see what the effects are of changing the
Scale

and the
Detail


14.

Hide the
Particle Trace Par
t and see
only
the particles fly
by; what are the effects of
Tracer Time

and
Tracer Delta

changes?

Toggle the
Multiple Pulses

on

and change the
Pulse Interval

13

14

13

11

4


15.

Switch off
the Particle Trace animation by double clicking the Particle Trace Part in the Parts List
and switching the
Animate

toggle off

16.

Select parts 1
-
9 and c
reate a clip
by clicking

the Clip icon

on the Feature toolbar;
select
the
Mesh Slice

to be in
Y

and
set
the
Value

to 0
(see the image below on the left)
which is the
center plane of the car
; color the clip plane by the Velocity variable and set the color range to 0
-
40; make the clip plane transparent with a
n opaque

value of 0.85; your model should look
somet
hing like the picture below on the right


















17.

Please note that you can also left click on the clip plane and move the
plane interactively;
however
,

this
is

a lot more
taxing on
the CPU and GPU so it probably won't update as fast as
moving streamlines


Extra Credit

18.

C
reate Vector Arrows by clicking the

icon on the Feature toolbar; select the Clip Plane
Part
and for the
Variable

select the velocity and set the
Density

to 0.1
; col
or the Vector Arrow
Part with the velocity variable for instance

19.

Select parts 1
-
9 and create
an Isosurface by clicking the

icon; set the
Variable

to
total_pressure and set the
Value

to 0;
color the Isosurface Part with the turb_kinetic_energy
variable
a
nd modify the range to 0
-
40

20.

Color the entire car by the pressure_coefficient but do
not

use the Color Wheel or a right click of
the mouse








16

5


Exercise 3: Query and plot using the Line Tool and query a point on a clip plane

of a stir tank


1.

Click on
File

-
>
Open

and click the
OK

button on the New Case menu and keep the default of
Replace Currently Loaded Data
;

select the
Simple Interface

again

2.

Set the
File Type

to
Case

and

go to the
../
EnSight 10 Training/
Exercises/EnSight Basic
Exercises/Exercise 3
& 4 Stir Tank/stir_tank.case

3.

Hide parts 3, 5 and 6

4.

Switch on the Line Tool by clicking on the Line Tool icon
; you probably won't see the Line
Tool because it's hidden inside of the yellow part with Part Id
=
4; move the Line Tool
so it's
inside of the F
low Field (Part Id = 1)

5.

Use the
Line

Tool to create a query and plot of the static pressure along the Line Tool

(right click
on the Line Tool)
;
see if you can make the plot look like the one below

























6.

Create a clip in the Flow Fiel
d

with a
Mesh Slice

in
X

and query a point on the clip using the
Interactive Probe Query feature by clicking the

icon;
select

Surface

Pick

for the
Q
uery

and
select Velocity for the
Variable
, then click

the P
-
key or click the mouse wheel
on the clip plane

7.

Set the
Query

back to
None

at the end of the exercise







6


Exercise 4: Stir tank with multiple viewports and dynamic labels


1.

Click on
File

-
>
Open

and click the
OK

button on the New Case menu and keep the default of
Replace Currently Loaded Data
;
select

the
Simple Interface

again

2.

Set the
File Type

to
Case

and go to the ../EnSight 10 Training/Exercises/EnSight Basic
Exercises/Exercise 3 & 4 Stir Tank/stir_tank.case

3.

Hide parts 3, 5 and 6

4.

Make a clip plane with a
Mesh Slice

at
X

= 1.0

(select the Flow Fie
ld as the parent)
;
create vector
arrows on the clip plane

with a Density of 0.25
, so select the Clip Plane Part that you've just
created as the parent, and color the vector arrows by the velocity; hide the Clip Plane Part so
only the vector arrows are visi
ble

5.

As you can see, t
he vector arrows are
coming out of the Clip Plane Part and it would be nice to
just have the tangential component
i
n the clip plane; to do this, double click the Vector Arrows
Part in the Parts List and toggle the
Advanced

button on the Edit Attributes
for

tagged Vector
Arrow (see the image
below
on the left)

























6.

Set the
Projection

to
Tangential

and set the
S
cale
F
actor

to 2.5; the model should look
something like the picture above on the right

7.

Create a new viewport by right clicking on the background and selecting
Viewports

-
>
Create
;
the new viewport can be moved and resized; move it to the top left corner of the grap
hics
window and make the size a little bigger by dragging one of the corners

8.

Right click in the background of the new viewport and select
Part Visibility

-
>
Hide All
; the new
viewport is now not showing anything at all; in the Parts List, click on the Vector Arrow Part and
drag it into the new viewport; now the new viewport only displays the Vector Arrow Part (make
you are looking at the
+X

view; use the

icon and s
elect
+X

if the view is incorrect)

5

6

6

7


9.

Create a new text annotation by right clicking in the background and selecting
Quick Text
; edit
the text to 'Clip Section at X = ' then click on the
Special Values

tab and select
Part Value

and
select
Clip Plane
-
>> 0001
,

then
click the
Insert Special Item

button (see the image below on the
left)
; the Part Value takes the current value of the X
-
value of the section clip and pastes it into
the text string so it's dynamically linked to the position of the clip plane (and th
e Vector Arrow
Part since it's a child of the Clip Plane
-
>> 0001 part)

10.

Your model should look something like the picture below on the right


















11.

Make a clip plane with a
Mesh Slice

at
X

= 0.5 (select the Flow Field as the parent) and color the
clip plane by the velocity; create another new viewport and put it below the viewport you've
created in the top left corner;
create another dynamic annotation just like the one
for the top
left vie
wport
(see image below)


9

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