How to create 2D Polar (r, theta) mesh?

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Aman Jaiswal
Aman Jaiswal 2020-9-21
评论： Adam Danz 2020-9-22
I want to create a 2D polar mesh for finite element analysis of droplet evaporation.
Similar to above image. Please give any suggestion on droplet evaporation also if you know something about it.

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回答（1 个）

Bjorn Gustavsson
Bjorn Gustavsson 2020-9-21
编辑：Bjorn Gustavsson 2020-9-22
What's not good enough with something like this:
n_phi = 15
phi = linspace(0,pi/2,n_phi+1); % should give you 15+1 edges and 15 angular regions
n_r = 12;
r_min = 1;
r_max = 23;
r = linspace(r_min,r_max,n_r+1);
[Phi,R] = meshgrid(phi,r);
X = R.*cos(Phi);
Y = R.*sin(Phi);
That will give you the radial and angular mesh in R and Phi and their Cartesian coordinates in X and Y.
HTH
  4 个评论
显示 2更早的评论
Aman Jaiswal
Aman Jaiswal 2020-9-22
So how can I perform finite element analysis using X and Y vectors you have created? Can you suggest any method in matlab or any tutorial.
Adam Danz
Adam Danz 2020-9-22
I'm sure there are tutorials that Google would find if you searched for it.

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