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Mathematical Particle Tracing_Weird results

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Hi there!

I am posting this thread because I am trying to simulate the deflection of a non magnetic particle in ferrofluids, under the influence of magnetic field. I have simulated the magnetic field through the mfnc module and I am now trying to simulate the deflection through the Mathematical Particle Tracing.
I have implemented the forces and their expressions and I am now computing the solution.
First of all, it takes a huge amount of time, sorry for that. Then, my deflection is completely weird, going one way and the other. I have checked again and again the forces' expressions, and can't find any mistake. It also says that it can't evaluate the expression when I try doing the graph of the position of the particle through the microchannel. Maybe it is in the use of the module itself.
I would be really grateful if you could try and help me.

I am joining the file.

Cheers

Antoine

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