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low frequency coil in CST (errors re large number of nodes)

m.fra

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Hi everyone! I have some problems with CST. I have to evaluate SAR and Power limits in an inductive coupling link in human tissues for Wireless Power Transfer. I use coils at the working frequency of 102 KHz. When I start the simulation, CST gives me warnings and errors such as:
1. "The settings you have chosen will lead to a mesh with more than 100 billion cells.
A model of such a size is quite uncommon and we suggest to contact CST support
to discuss the setup of your model."

2."Defined reference frequency for open boundary condition (75.5 kHz) is larger than the lowest relevant system frequency (monitor at 1 kHz).
Please check open boundary settings to ensure accurate monitor results for the lowest frequency of interest."

3."Simulation setup for 297.8 billion mesh cells requires:
- MPI simulation setup with at least 139 cluster nodes
Simulation cannot be started."

What can I do? Thank you!
 

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