MATLAB: Alternative command to interpolateSolution on manipulated results item

interpolatesolutionMATLABpde

Hello,

I'm trying to use the command interpolateSolution onto a matrix calculated by the results of a PDE analysis.

The correct workflow uses 'results' in the interpolateSolution command, where results = pdesolve(model, time). In my case, I have manipulated the solution matrix with some calculations and thus I cannot use the new matrix as interpolateSolution entry.

Is there an alternative command to do the same action?

In particular, I need to interpolate my results over a structured meshgrid and reduce the node number.

Thank you in advance, bests

Best Answer

You can try using the createPDEResults function.

Regards,

Svetlana Pease

Technical writer, MathWorks documentation group

Related Solutions

MATLAB: How to use interpolateSolution when StationaryResults has multiple equations or solutions

In this case, the results object has results for multiple equations. Because of this, it is necessary to pass a parameter into "interpolateSolution" to specify which solution sets you would like data from. Try the following code as an example:

xq = linspace(0,10);
yq = ones(1,100);
uinterp = interpolateSolution(res,xq,yq,[1,2]);
fig = figure;
plot(uinterp);

In this case, [1,2] is specifying that we want the results from both the first and second equations. [1] would return the first results only while [2] would return the second results only.

For more information, please see the following documentation for "interpolateSolution":

https://www.mathworks.com/help/releases/R2017a/pde/ug/interpolatesolution.html

MATLAB: Undefined function or variable ‘createPDEResults’

As the release notes state, createPDEResults was introduced in R2015b, not R2015a. The same information is at the end of the createPDEResults reference page.

Alan Weiss

MATLAB mathematical toolbox documentation

Best Answer

Related Solutions

MATLAB: How to use interpolateSolution when StationaryResults has multiple equations or solutions

MATLAB: Undefined function or variable ‘createPDEResults’

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