No Jx component for VMD over a halfspace?

geoscixyz / em-apps

Interactive applications for electromagnetics in geophysics

http://em.geosci.xyz

MIT License

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No Jx component for VMD over a halfspace? #56

Open jiajiasun opened 5 years ago

jiajiasun commented 5 years ago

I was exploring the app TDEM_HorizontalLoop_LayeredEarth. The parameters that I used are summarized in the following figure. tdem

How come there is no Jx component, if the induced current is flowing in a circular fashion, as shown below? If only Jy exists, then current would only flow in y direction, then the current would not flow in a circular manner.

(I have the exact same problem with the app FDEM_VMD_LayeredEarth.ipynb)

jiajiasun commented 5 years ago

There is a check box beside 'Fixed'. What would happen if that box is checked?

sgkang commented 5 years ago

Sorry .. @jiajiasun for being too late.. It will fix the scale based on vmin and vmax that you input

sgkang commented 5 years ago

It is when you are on x-z plane, where only Jy component exist. More rigorously in 3D, we have only azimuthal component, which is circulating.