How to plot temperature along a defined line within a 2D temperature field

15 views (last 30 days)
I can obtain 2D temperature field solutions such as the steady state example below. I would like to be able to plot the temperature along a defined line within this domain. For example, how can I produce a plot of T as a function of x for Y= 0 from X= -15 to X= 0 or for X= -12 from Y= -15 to Y= +15? I would also like to be able to do this at a defined time for a transient problem. I am aware of the slice command but I just want a simple T vs X or Y plot. Thanks
thermalmodel = createpde("thermal","steadystate");
R2= [3,4,-15,15,15,-15,-15,-15,15,15]';
geom=[R2]
g=decsg(geom)
model= createpde
geometryFromEdges(thermalmodel,g);
pdegplot(thermalmodel,"EdgeLabels","on")
xlim([-20 20])
axis equal
thermalProperties(thermalmodel,"ThermalConductivity",1);
thermalBC(thermalmodel,"Edge",1,"Temperature",100);
thermalBC(thermalmodel,"Edge",2,"Temperature",100);
thermalBC(thermalmodel,"Edge",3,"Temperature",100);
thermalBC(thermalmodel,"Edge",4,"Temperature",400);
generateMesh(thermalmodel);
figure
pdemesh(thermalmodel)
title("Mesh with Quadratic Triangular Elements")
thermalresults = solve(thermalmodel)
title("Temperature In The Plate, Steady State Solution")
xlabel("X-coordinate, meters")
ylabel("Y-coordinate, meters")
axis equal

Accepted Answer

Torsten
Torsten on 2 Sep 2024
  4 Comments
John McGrath
John McGrath on 2 Sep 2024
Thorsten
This is fantastic! Thanks so much for your help.
Is there an easy way to export the T vs x or T vs Y data as a file?
john
Torsten
Torsten on 2 Sep 2024
Edited: Torsten on 2 Sep 2024
Define x, y and uxy as output arguments of the function "plotAlongLine" and write them to file.
Usually, "fprintf" is used for this:
If you don't know how to proceed, I recommend MATLAB Onramp, an introductory course free-of-costs to learn the basics of the language:

Sign in to comment.

More Answers (1)

Image Analyst
Image Analyst on 2 Sep 2024
I know you already got an answer that you've accepted but I just thought I'd mention improfile. It can give you a profile of values in a matrix from any point to any other point.

Categories

Find more on Programming in Help Center and File Exchange

Products


Release

R2024a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!