Re: [OpenVSP] CD0 from VLM analysis vs CD0 from Parasite Drag Tool

[Rob McDonald]

I wouldn't use the CD0 from VSPAERO. I would use the one from the
Parasite Drag Tool -- but even that takes an experienced hand to
choose the right form factors and adjust inteference factors, etc.

The VLM is independent of the CD0, so no need to 'run VLM using a
CD0'. Just add them together down the road.

Rob


On Wed, May 23, 2018 at 3:23 PM, Péricles Serotini <p.ser...@gmail.com> wrote:
> Hi Rob,
>
> I am a little confused about what CD0 I should use. In my current design,
> Parasite Drag Tool says that my Parasite Drag is around 278 drag counts.
> However, when I run a VLM analysis, the CD0 I find is equal to 440 drag
> counts. Which one should I use? Is there an easy way to run a VLM analysis
> using the CD0 calculated from Parasite Drag Tool?
>
> Thank you for your attention,
>
> Péricles
>
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