Search found 1438 matches

by thorsten
Wed 21 Oct 2020, 08:19
Forum: Usage
Topic: Segmentation Fault (Core Dumped)
Replies: 1
Views: 1798

Re: Segmentation Fault (Core Dumped)

Please install the latest version from github.

br
Thorsten
by thorsten
Sun 11 Oct 2020, 11:00
Forum: Usage
Topic: FDTD Computation Time Estimation
Replies: 1
Views: 1690

Re: FDTD Computation Time Estimation

Hi, well you get the time it takes to calculate each step one the engine has started and run for a few seconds. Thus you can roughly calculate how long the excitation will take since that number is given during setup as well. But what nobody can estimate (without any prior experience with the given ...
by thorsten
Tue 22 Sep 2020, 19:40
Forum: Usage
Topic: What the reason when I run MRI_Loop_Coil.m?
Replies: 3
Views: 2643

Re: What the reason when I run MRI_Loop_Coil.m?

You will need the human body models to run this simulation.
But openEMS cannot include them, if you have no access to them, you cannot run this simulation
Read more here: https://openems.de/index.php/Tutorial:_ ... _Coil.html
Including alternatives to the human body models.

regards
Thorsten
by thorsten
Tue 22 Sep 2020, 19:37
Forum: Usage
Topic: Properly meshing a port
Replies: 2
Views: 2276

Re: Properly meshing a port

The excitation, (data) probes and such are always snapped to the nearest mesh lines in any case. Therefore it is better to align your mesh with your structures in the first place, otherwise the excitation and such may end up in locations you did not plan them to be. Therefore, place mesh lines at th...
by thorsten
Tue 22 Sep 2020, 19:34
Forum: Usage
Topic: Resume simulation from previous data
Replies: 1
Views: 1953

Re: Resume simulation from previous data

No it is not. During simulation 99% of the data is only temporary and is not saved. Thus resuming is not really feasible.

regards
Thorsten
by thorsten
Tue 22 Sep 2020, 19:29
Forum: Usage
Topic: Simulating objects in FarField of Antenna
Replies: 2
Views: 2210

Re: Simulating objects in FarField of Antenna

A lot of details here are unclear or make little sense to me. First of the far field of an antenna is hard to define exactly but in this case it should be well below one lambda (not 8 or something). The question is what you want to do here? Why do you want to place a lens this far away? Usually a le...
by thorsten
Sun 20 Sep 2020, 10:39
Forum: Usage
Topic: material density
Replies: 2
Views: 2203

Re: material density

This property does not affect the EM simulation at all.
It is only required for SAR post-processing.
The unit is of course kg/m³. E.g. ~1000 for water.

regards
Thorsten
by thorsten
Fri 18 Sep 2020, 17:36
Forum: Usage
Topic: No output when running simulation
Replies: 6
Views: 6230

Re: No output when running simulation

Thanks for verifying. I will make a patch and a new version soon...
by thorsten
Sun 13 Sep 2020, 20:32
Forum: Usage
Topic: function that restores structures from the xml-file
Replies: 1
Views: 2003

Re: function that restores structures from the xml-file

Hi, the python interface can do this. It has a read functionality too. But , I have never needed this since I usually only ever added a post_proc_only flag and just reran the entrie matlab/octave script just without deleting any data and without running the solver. This would only do the post-proces...
by thorsten
Sun 13 Sep 2020, 20:14
Forum: Usage
Topic: No output when running simulation
Replies: 6
Views: 6230

Re: No output when running simulation

I think this is how it should be in "matlab/private/invole_openEMS.m" Lines 47-end:

Code: Select all

exitcode = system(command);
if (exitcode~=0);
    error(['openEMS binary exited with error-code ' num2str(exitcode)]);
end
This works for me, can you verify...