I have tried to manually compare the drag coefficient results on a bare tower for square plan towers with circular members. I have solidity of front face between 0.1 to 0.3
When I use the code AS3995 in Mstower, my results came out to a very close match to the loading log from Mstower v6.20.1.11.
But when I use the code AS1170 in Mstower, my results was very different for "Onto corner" to the loading log from Mstower v6.20.1.11
bV is < 3m^2/s and solidity of 0.16
My manual calculations show Cd = 2.3 as per AS/NZS 1170.2-2011 Amdt 2-2012 Table E6(B)
My believe is that MStower v6.20.1.11 also uses the table from AS/NZS 1170.2-2011 Amdt 2-2012 Table E6(B), but the loading log shows a Cd = 2.25 on the same tower frame.
Can I confirm that Mstower uses the drag table from AS/NZS 1170.2-2011 Amdt 2-2012 Table E6(B) when AS1170 is specified as the code in the twr file?