Re: [boost] [units]

From: Deane Yang (deane_yang_at_[hidden])
Date: 2007-03-06 21:02:35

Noah Roberts wrote:
> Deane Yang wrote:
>> Can you provide a concrete example?
> 
> Formula for Fluid Compressibility through a Venturi Tube:
> 
> Y = {[kt^(2/k)/(k-1)][(1-b^4)/(1-b^4t^(2/k))][(1-t^((k-1)/k)/(1-t)]}^.5
> 
> With k being the SP heat ratio of the fluid passing through the venturi. 
>   Static dimensional analysis is impossible here.  In fact dimensional 
> analysis at all just isn't appropriate in these odd cases.
> 

So you're saying that the dimension/unit library does *not* need to 
worry about formulas like this, right? If so, my comments below are 
off-topic.

But I'm still a skeptic. I don't see why the trick I outlined before 
can't be played here, too. Tell me what each variable means and what 
units it is in (if any). Or give me an online reference for this formula.