Problems with ac-dc module frequency domain study
Hi All, Just started to use Comsol for 3d inductor magnetic field simulation. I find the ac-dc module tutorial pretty helpful and I followed that for the stationary simulation. However, when I started...
View ArticleRe: Problems with ac-dc module frequency domain study
Wei, Increase air conductivity to 0.01[S/m]. Rule of thumb for conductivity scaling is sig_metal/sig_air~1e6 to 1e8. In your model this ratio was set to ~1e13 which seems too high. Regards, Sergei
View ArticleRe: Problems with ac-dc module frequency domain study
Sergei, Thanks so much. I managed to finish the calculation. But when I evaluate the lumped port impedance at 100KHz and 1Mhz, the real parts are the same at 32605 and the imag parts are both negative....
View ArticleRe: Problems with ac-dc module frequency domain study
I shrink the size of the gap domain in the model and make sure it is well inside the gap of the coil. And I got impedance like positive number+i*positive number. But it doesn't make sense for the...
View ArticleProblems with ac-dc module frequency domain study
Hi All, Just started to use Comsol for 3d inductor magnetic field simulation. I find the ac-dc module tutorial pretty helpful and I followed that for the stationary simulation. However, when I started...
View ArticleRe: Problems with ac-dc module frequency domain study
Wei, Increase air conductivity to 0.01[S/m]. Rule of thumb for conductivity scaling is sig_metal/sig_air~1e6 to 1e8. In your model this ratio was set to ~1e13 which seems too high. Regards, Sergei
View ArticleRe: Problems with ac-dc module frequency domain study
Sergei, Thanks so much. I managed to finish the calculation. But when I evaluate the lumped port impedance at 100KHz and 1Mhz, the real parts are the same at 32605 and the imag parts are both negative....
View ArticleRe: Problems with ac-dc module frequency domain study
I shrink the size of the gap domain in the model and make sure it is well inside the gap of the coil. And I got impedance like positive number+i*positive number. But it doesn't make sense for the...
View ArticleProblems with ac-dc module frequency domain study
Hi All, Just started to use Comsol for 3d inductor magnetic field simulation. I find the ac-dc module tutorial pretty helpful and I followed that for the stationary simulation. However, when I started...
View ArticleRe: Problems with ac-dc module frequency domain study
Wei, Increase air conductivity to 0.01[S/m]. Rule of thumb for conductivity scaling is sig_metal/sig_air~1e6 to 1e8. In your model this ratio was set to ~1e13 which seems too high. Regards, Sergei
View ArticleRe: Problems with ac-dc module frequency domain study
Sergei, Thanks so much. I managed to finish the calculation. But when I evaluate the lumped port impedance at 100KHz and 1Mhz, the real parts are the same at 32605 and the imag parts are both negative....
View ArticleRe: Problems with ac-dc module frequency domain study
I shrink the size of the gap domain in the model and make sure it is well inside the gap of the coil. And I got impedance like positive number+i*positive number. But it doesn't make sense for the...
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