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COMSOL won't change the mesh resolution

Posted Jan 10, 2018, 4:23 p.m. EST Electromagnetics, Low-Frequency Electromagnetics, RF & Microwave Engineering Version 5.3 2 Replies

Zahed Hossain
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I followed a youtube tutorial to create a point dipole step-by-step. However, when I tried to create the mesh, it creates only four triangles at normal resolution. Even if I change the resolution to fine, or extra fine, it does not change the meshgrid.

Thanks in advance, Zahed

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2 Replies Last Post Jan 11, 2018, 12:46 p.m. EST
Magnus Ringh COMSOL Employee

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Posted: 6 years ago Jan 11, 2018, 2:34 a.m. EST

Hi,

That's because the model uses a physics-controlled mesh (see the Sequence type list in the Mesh node's Settings window). A physics-controlled mesh for electromagnetic waves sets the mesh size to resolve the wavelength. For the frequency-domain analysis in this model, the frequency is set to 10 GHz, which corresponds to a wavelength that far exceeds the dimension of the geometry in the model (10x10 micrometers). You can get a fine mesh by switching to a user-defined mesh or by increasing the frequency by several orders of magnitude.

Best regards, Magnus Ringh, COMSOL

Hi, That's because the model uses a physics-controlled mesh (see the **Sequence type** list in the **Mesh** node's **Settings** window). A physics-controlled mesh for electromagnetic waves sets the mesh size to resolve the wavelength. For the frequency-domain analysis in this model, the frequency is set to 10 GHz, which corresponds to a wavelength that far exceeds the dimension of the geometry in the model (10x10 micrometers). You can get a fine mesh by switching to a user-defined mesh or by increasing the frequency by several orders of magnitude. Best regards, Magnus Ringh, COMSOL
Zahed Hossain
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Posted: 6 years ago Jan 11, 2018, 12:46 p.m. EST

Hi, Thanks alot for your quick reply. Its clear now :)

Hi, Thanks alot for your quick reply. Its clear now :)

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