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Model of multiple spheres in a cube

Posted Aug 26, 2014, 11:42 a.m. EDT Geometry Version 4.4 3 Replies

Shailesh Konda
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Hey!
I want to place multiple spheres (100 - 400) in a cube. I have an array of co-ordinates ( x, y, z) defining the center of sphere and a vector of all the radius ( r) of spheres. Is there anyway by which i can make such a model in Comsol geometry?
3 Replies Last Post Jun 5, 2017, 11:31 a.m. EDT
Pieter Westerik
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Posted: 10 years ago Aug 29, 2014, 10:19 a.m. EDT
I think you can do it using Matlab code, but I do not know how. Maybe you can try contacting the person who started this thread: www.comsol.co.in/community/forums/general/thread/46371/.
I think you can do it using Matlab code, but I do not know how. Maybe you can try contacting the person who started this thread: http://www.comsol.co.in/community/forums/general/thread/46371/.
Joost van der Linden
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Posted: 10 years ago Dec 7, 2014, 9:50 p.m. EST
% Create geometry in 3D
geom1 = model.geom.create('geom1', 3);

% Create spheres
for i = 1:N
name = strcat('sph',int2str(i));
model.geom('geom1').feature.create(name, 'Sphere');
model.geom('geom1').feature(name).set('r' , r(i) );
model.geom('geom1').feature(name).set('pos', [X(i) Y(i) Z(i)]);
end
% Create geometry in 3D geom1 = model.geom.create('geom1', 3); % Create spheres for i = 1:N name = strcat('sph',int2str(i)); model.geom('geom1').feature.create(name, 'Sphere'); model.geom('geom1').feature(name).set('r' , r(i) ); model.geom('geom1').feature(name).set('pos', [X(i) Y(i) Z(i)]); end
Walter Frei COMSOL Employee

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Posted: 7 years ago Jun 5, 2017, 11:31 a.m. EDT
Hello,

You may also find this approach (new to version 5.3) helpful:
www.comsol.com/blogs/how-to-create-a-randomized-geometry-using-model-methods/

Best Regards,
Hello, You may also find this approach (new to version 5.3) helpful: https://www.comsol.com/blogs/how-to-create-a-randomized-geometry-using-model-methods/ Best Regards,

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