Andreas G wrote:
Do we need an Airship Development Software tool that helps us design
airships in a computer aided design approach to have an integrated
development environment. The question is not who will build it but who
can see themself using it. And who would be willing to give the input
in technical and business expertise regarding mathematical formulars,
requirements aso.
I would love to start such a project and spearhead the Software
Development since I am a Computer Scientist but i would like to know
if you see a need for it and if you would be willing to contribute.
The Development model should be collaborative and the software or the
resources and artifacts produced should be available for free as
opensource so that everyone can use them enhance them and modify them.
Let me know what you think I could envision specialized versions for
designing remote controlled airships and passenger airships.
Regards
Andreas G
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Editor of Airshipworld
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I am interested in collaborating. I just setup a forum on smallblimps.lefora.com a few days ago for that purpose before I knew of this forum and thread. I can offer a lot of formulas I have come across in the process of codifying my blimps designs. For example you can get a good estimate of your volumetric drag coefficient based on fineness. Needed information is fineness(or length/width), the reciprocal of fineness (width/length), and Reynolds number based on length.
=((0.172*(l/d)^(1/3))+(0.252*(d/l)^(-1.2))+(1.032*(d/l)^(-2.7)))/(Re^(1/6))
or on my excel file it is
=((0.172*(B32)^(1/3))+(0.252*(B34)^(-1.2))+(1.032*(B34)^(-2.7)))/(K41^(1/6))
It should come out to about .002 depending on fineness.
My excel file might be a good starting point if it were organized for someone else to easily use.
Re: Designing Airships - bringing our collective knowledge together
