Posted Thu, 21 Sep 2017 00:05:55 GMT by Alex Costall PhD Student
I've managed to confuse myself regarding anisotropy settings.

In most cases I've seen, anisotropy is the ratio of the maximum to minimum.
e.g. setting it to '10' would net 10 times greater parameter in that direction.

However, in FEFlow, anisotropy of conductivity is defined as K_min/K_max

So, setting this to 10, such as the case before, would actually [i]reduce [/i]the flow in that direction - but, if K_min is 10-times greater than K_max, that doesn't make sense conceptually.

I'd like to set the flow to be 10 times greater in the primary direction than the orthogonal direction, do I need to set K to 10 or to 0.1!?!

Posted Tue, 03 Oct 2017 02:49:27 GMT by Alex Costall PhD Student
@Bjorn, any sage words for me? :P
Posted Mon, 09 Oct 2017 09:44:53 GMT by Björn Kaiser
Sure, sorry for not writing earlier. Are you using a 2D or 3D model? Did you change settings for the anisotropy in the Problem Settings?
Posted Tue, 10 Oct 2017 00:24:13 GMT by Alex Costall PhD Student
Glad to hear from you!

It's a 2D planar model, with the simplest case of anisotropy (Isotropic?) in the problem settings, and just modifying the 'Anisotropy of Conductivity' value.
Posted Thu, 26 Oct 2017 06:53:48 GMT by Björn Kaiser
Posted Fri, 27 Oct 2017 04:46:28 GMT by Alex Costall PhD Student
Thankyou! :D

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