#COMSOL 5.1 INTERPOLATION FUNCTION MANUALS#
#COMSOL 5.1 INTERPOLATION FUNCTION MANUAL#
#COMSOL 5.1 INTERPOLATION FUNCTION FULL#
#COMSOL 5.1 INTERPOLATION FUNCTION CODE#

In my model I am using 'Transport of Diluted Species' physics. Please login with a confirmed email address before reporting spam. Now, this time COMSOL can not recognize the interpolation function f. Can a function affect a field variable into a physics Posted, 07:41 GMT-7 Chemical Reaction Engineering Version 5.1 0 Replies. I put some pics in the attach to show you.

Now, i change the data in the interpolation function (int1) with another data-file. The plot created then in a new Plotgroup (pg1). In the beginning there is no problem with loading the data by a file (x-Range: for eg.

But if I click the node pg1 (Plotgroup), then it didn't refresh my results-plot. i want to visualize a interpolation function (int1) as a plot. (x-Range: now 300-1600K) If i hit plot, it visualize the right plot in the graphics window. I * sin(t) * f (r,z) %%%% arguments: t, r, zДЄren't r & z implicitly defined already when I defined the interpolation function and checked 'Use space coordinates as arguments'? Do I need to explicitly define them again somewhere else? property of their respective owners, and COMSOL AB and its subsidiaries and products are not affiliated with, endorsed by, sponsored by, or supported by those trademark owners. The plot created then in a new Plotgroup (pg1). So, I just defined firstly a interpolation function f (r,z) and then the new time-variant force input as a analytic function with the following expression: Dear all, Im encountering problems when using the Interpolation functions. Since I was successful before with the static model (only f(r, z)). 2015, 11:44 UTC+1 AC/DC & Electromagnetics Version 5.1 2 Replies. How can I solve the problem Or should I use Variables Thanks. Now I want to define a function for a heatsource: Q const (T(t) - T0) If I try to modulate that function as an analytic function, COMSOL doesnВґt recognice T(t). I need to define an volumetric force input F( t, r, z )as below, which varies both with time and space:ДЇ( t, r, z ) = I * sin(t) * f( r, z ) %%% I is const, t is time, r & z are space coordinates with unit meterД«asically, F consists of two parts, one is time dependent : sin ( t ) and the other space dependent part is grid point values for defining interpolation function : f(r, z). I have defined an interpolation function T(t) for a temperature profile. Therefore they are not accessible and flagged as unknown in a postprocessing sequence.ДЇinally, if you leave the mouse pointer over a variable field with an error, normally COMSOL will tell you the error it detected, in a small popupI am a COMSOL newbie and need some help on defining time dependent interpolation function. In such a text file, there is one column each for x-, y-, and z-coordinates followed by an arbitrary number of data columns.

For this example, the Spreadsheet format is used.

#COMSOL 5.1 INTERPOLATION FUNCTION FULL#

Then another point: if you have solved a model, and you add some operators, these are not understood by the Results section before you have 'updated the solver' or done a full new 'Solve'. Using a Text File to Create Interpolation Functions in COMSOL MultiphysicsВ® A text file with material data can be formatted in different ways.

Despite I tried to assign the units to the arguments as seconds and meters, respectively, as explained at 'Common Settings for the Function Nodes' from Help.

#COMSOL 5.1 INTERPOLATION FUNCTION MANUALS#

You can access all manuals through File > Help > Documentation. Interpolation functions support up to 3 arguments, but not 4.

#COMSOL 5.1 INTERPOLATION FUNCTION MANUAL#

If myVar are in microns, and you write myVar then the microns are scaled to meters and entered into the function as meter value, but without units Fig.5.1 Barycentric interpolation of the function f(x)x +x/2 x2 in 21and 101Chebyshev points of the second kind on 1, 1. I am trying to use the function Interpolation to import velocity data that depends on position and time V (x,t) into COMSOL and set it as the outlet velocity boundary condition. Keisoku Engineering System Co., Ltd., 195 Uchikanda, Chiyodaku, Tokyo 1010047, Japan. Interpolation functions are documented in the Reference Manual for COMSOL Multiphysics version 5.2a, see page 277 and following. Hence if you wanf to use myFunc(myVar) as a force input in Newtons, you should write: Operators and functions require unitless entries (and return unitless) The colors are orange for unit errors, and red for typos (missing (), undefined variables.

#COMSOL 5.1 INTERPOLATION FUNCTION CODE#

There are the color code that Mostly works OK, but sometimes need a solve initialisation, or a refresch such as exciting and reentering a node to get updated.

Comsol 5.1 interpolation function