Learning Forum

[farnazhd66]

hello,

when I'm applying a current to the specific surface, it is defined as input current. how can I change the direction to output?

many thanks,

Farnaz

[Naresh Patre]

Hello farnazhd66

Generally, current is defined at the input location and voltage at the output location. Can you provide some detailed information about the problem that you are trying to simulation?

[farnazhd66]

hi, thanks for the quick reply. I want to simulate the voltage distribution in the battery grid, for that I need current input and output according to the attached picture. but I cannot apply output current to the top surface. It is defined as input by the software. how can I change the direction?

[Naresh Patre]

Hello farnazhd66

I think you need to use current at input locations and Voltage (0V) at output location. Can you try it out?

[farnazhd66]

you mean there is no need to define output current at all, right?

[Naresh Patre]

farnazhd66 Yes, you are correct!

[farnazhd66]

The problem is that when I set input currents, I cannot even apply voltage at the output location. 

I get the error that” current share one geometry entities with voltage which is not allowed by the solver.”
It seems that faces which are in contact with applied current can't be selected as voltage location. What can I do in this case?
Many thanks,

[Naresh Patre]

Hello farnazhd66

You can't apply current as well as voltage on the same face. As mentioned earlier, you can specify current at the input location and voltage (0V) at the output location. Please check out the fuse example from below link to get an idea.

https://discoveryforum.ansys.com/t/x1plbq/discovery-aim-structural-thermal-electromagnetics-simulation-of-a-fuse 

[farnazhd66]

I didn't apply voltage and current at the “same face”. I did exactly according to what you said, I specified current at the input location and voltage (0V) at the output location, according to the attached picture. But I received the voltage location error.

[Naresh Patre]

Hello farnazhd66

Can you send the project file (archived .wbpz file) to look into the issue?

[farnazhd66]

Naresh Patre Sure thanks a lot,  how can I send it? Should I upload the file here?

[Naresh Patre]

Hello farnazhd66

I will send you a secure transfer link for uploading the project file. Make sure that you upload the archived project file (.wbpz file).

[Naresh Patre]

Hi farnazhd66

Thanks for sending the file. I checked it and noticed that the faces on which current and voltage are defined are adjacent to each other which is not allowed. One workaround is to split the input current faces near the output location as shown below.

 

[farnazhd66]

Many thanks for checking my file. Is there any consideration that needs to be applied after splitting the bodies?
I used interface generator but I don't get any voltage distribution by splitting.

[Naresh Patre]

Hello farnazhd66

I tried in the latest 2020 R2 build and I am getting results different from the one that you shared. 

You mentioned that you split the bodies. I think there is no need to split the body. Your need to split only the top and bottom face using "Split" tool (located just below the Split Body tool)