FLUXUS ADM 8027, F801, ADM 8127B
15 Libraries
108
UMFLUXUS_F8V4-6-1EN, 2018-10-10
Customized Interpolation Functions
Some dependencies are only approximated insufficiently by polynomials. A number of customized interpolation functions
Basics: Y=F(X,Z)
are available to interpolate multidimensional dependencies
y = f(T, p)
. For further information
contact FLEXIM.
15.3.2
Activation of the Extended Library
15.3.3
Input of the Material/Fluid Parameters
The parameter of a user defined material/fluid can be entered now.
The input of a material or a fluid is almost identical. Therefore, the displays for a fluid will only be shown and described in
case of differences.
Material Parameter
Enter the material's:
• transversal sound speed
• longitudinal sound speed
1...5 values depending on the selected function have to be entered. Press ENTER after each input.
If an already defined material is edited, for each parameter there will be a request whether it is to be edited.
Select
yes
or
no
. Press ENTER. Change the values, if necessary.
Select
Special Funct.\SYSTEM settings\Libraries\Extended Library
.
Press ENTER.
Select
on
to activate the extended library. Press ENTER.
Select
Special Funct.\Install Material
or
Install Medium
. Press ENTER.
This error message will be displayed if the coefficient memory does not contain an area for
user defined materials/fluids.
Partition the coefficient memory accordingly (see section 15.1).
Select the function for the temperature or pressure dependence of the material/fluid prop-
erties:
Y=CONST.
: constants
Y=M*X+N
: linear function of the temperature
Y=Polynom:
y = k
0
+ k
1
· x + k
2
· x
2
+ k
3
· x
3
+ k
4
· x
4
Y=F(X,Z):
customized interpolation function (only for experienced users or after consul-
tation with FLEXIM)
go back:
return to the previous menu item
Select a user defined material/fluid.
Select
edit
to edit the material/fluid parameters or
delete
to delete the material/fluid
and to return to the scroll list
Edit Material
or
Edit Medium
.
This display will only be indicated if an already existing material/fluid has been selected.
Enter the designation of the material/fluid. Press ENTER.
The default name for a user defined material/fluid is
USER Material
N
or
USER Medium
N
with
N
being an integer.
Select the type of sound wave to be used for the flow measurement. Press ENTER.
For most materials, a transversal sound wave has to be selected.
Enter the typical roughness of the material. Press ENTER.
Extended Library
off
>ON<
Special Funct.
↕
Install Material
USER Material
NOT FORMATTED !
Edit Material
↕
Basics:Y=m*X +n
USER Material
↕
#01:--not used--
USER Material
2
>EDIT<
delete
#2: Input Name:
USER Material
2
Default soundsp.
long. >TRANS.<
Roughness
0.4
mm
