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Forum: CFX

February 29, 2012, 04:00

Replies: 4

Log-law velocity profile in CFX-Pre

Views: 2,558

Posted By Lance

Yes, when z = 0 it will result in loge(0) which...

Yes, when z = 0 it will result in loge(0) which is undefined, thats why you get an error. One thing you could try is loge((hz+eps)/z0[m]) where eps is a very small number. But be aware that it might...

Forum: CFX

February 29, 2012, 03:09

Replies: 4

Log-law velocity profile in CFX-Pre

Views: 2,558

Posted By Lance

Yep, loge (or ln) wont accept an argument with...

Yep, loge (or ln) wont accept an argument with dimensions, see cfx_ref.pdf at page 168 (for version 14). Just normalize it with /1[m] or make z0 = 0.0001 [m] and you should be fine. If you want your...

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