computing accurate fluxes with periodic boundary conditions?
Hi everybody, does anyone know if I can compute the fluxes accurately, as described in the user guide on page 308 ff. and file 0973 from the knowdledge database etc, when using periodic boundary...
View Articleerror message when define interpolating function in matlab (other function...
Hello everybody, whenever I define an interpolation function in matlab with model.func.create('int1', 'Interpolation'); I get an error message (see below) - but if I write instead...
View Articlescript for exporting deformed geom from livlink matlab ?
Hi all, In GUI, I could remesh the deformed configuration from the results dataset, and from there i could export to a new geometry (xx.mphbin). But how can i do the same from matlab livelink ? I...
View ArticleHow to incorporate varying temperature with respect to time??
As the ambient temperature varies with time, I wish to add that variation pattern of temperature in COMSOL 4.3a. Is it possible? If possible, how can I add 1. using equations 2. using excel sheet for...
View Articlepartial derivative of external MATLAB function
Hi, I am modeling reactive transport in COMSOL and have external MATLAB function to solve the chemical reactions. MATLAB function is defined based on five COMSOL variables as follows; FUNCTION NAME:...
View ArticleAdding temperature varying with time
I want to enter temperature for calculating heat flux (temperature varies with time). Is there any method of entering the values? How can I use functions like interpolation, Rectangular etc,,,
View ArticleHow to determine face numbers (using matlab livelink) associated with an object
Hello again, I am trying to 'automatically' set my boundary conditions for a model generated in matlab with livelink. I know which objects need to have which boundary conditions based on a draw order...
View Articleconfusion between comsol 3.5a and 4.3a
hello everyone, It might be a noob question, but could anyone please tell me how this should work in comsol 4.3a. So in comsol 3.5a in order to save the normalized electric field i just did this:...
View ArticleCOMSOL 4.3 with MATLAB error
I have a problem with COMSOL 4.3 with matlab simulation. The error message is below. ??? Java exception occurred: Exception: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException...
View ArticleMATLAB Livelink
Hi I am running a MATLAB script from COMSOL with MATLAB, and it eats up all memory in C drive. so it never returns any result before it crashes. Any idea why this happen? something wrong with the...
View ArticleCOMSOL 4.3 with MATLAB error 2
I have the code that have for loop. Before the first loop is finished, we met several error messages ??? Error using ==> mphinterp at 317 mphinterp (292): Java exception occurred: Exception:...
View ArticleIntegration of MATLAB functions with more than one variable
Hi, I want to realize an integration in COMSOL 4.3a using self-written MATLAB functions. If I use a test function with one input and one output argument everything works as expected (plotting function,...
View ArticleError to initialize a physics interface created with Physics Builder in...
Hi all, I am trying to compile with LiveLink for Matlab (Matlab version MATLAB_R2012a) a Comsol model (Comsol version COMSOL 4.3.0.151) that uses a physics interface which I created with the Physics...
View ArticleCOMSOL 4.3 with MATLAB error
I have the code that have for loop. Before the first loop is finished, we met several error messages ??? Error using ==> mphinterp at 317 mphinterp (292): Java exception occurred: Exception:...
View ArticleStore solution and use as a boundary condition for the next run
Hi Does anybody knows how to apply the results obtained at the outlet of first run back to the inlet as an inlet bounrady condition? Actually the objective is to study a flow in a long clyinder by...
View ArticleProblem with create new solution in comsol 4.1
Hi I have problem with crating a solution using script in Comsol 4.1. In help I read that Comsol enabled functionality to manipulate solutions (see help model.sol). I want to creates a solution object...
View ArticleError: Unknown property: funcname
Hi, I have defined a MATLAB function which is called by COMSOL. I get an error message such as: Undefined value found. - Detail: Undefined value found in the equation residual vector. There are 2128...
View ArticleParallel computing MatLab Comsol
Hi, I am using Comsol 4.3 with Livelink for Matlab. I run an optimization code in Matlab where i call Comsol to perform frequency response simulations. Now i would like to start two parallel frequency...
View ArticleError to initialize a physics interface created with Physics Builder in...
Hi all, I am trying to compile with LiveLink for Matlab (Matlab version MATLAB_R2012a) a Comsol model (Comsol version COMSOL 4.3.0.151) that uses a physics interface which I created with the Physics...
View Articlecomputing accurate fluxes with periodic boundary conditions?
Hi everybody, does anyone know if I can compute the fluxes accurately, as described in the user guide on page 308 ff. and file 0973 from the knowdledge database etc, when using periodic boundary...
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