The [question that caused the discussion][1] is in reality a shopping question because the OP is looking for software that doesn't take years of training to understand. Which kind of makes my point for me.

I don't understand how designing a datacenter is a sysadmin et al task. We may have input to the requirements phase, some oversight of the design but we wouldn't really design the building. 

Building design is a complex subject, in the UK architects study for at least 5 years before they get their degree and 2 years post graduate before they can call themselves architects. 

It's an interesting subject but it's not our job and should be left to professionals in the field.


  [1]: http://serverfault.com/questions/517675/how-to-simulate-air-flow-in-a-datacenter