Re: The-List Digest, Vol 14, Issue 1
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Re: The-List Digest, Vol 14, Issue 1
by brunians
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Dr Pant,
You should subscribe to airship-list@.... I am sure there are several people there who would be interested. . > Dear All, > > I am an academician who had developed a methodology to arrive at > baselines specifications of a non-rigid airship given the operating > requirements. This methodology has appeared as a Technical Note, in > AIAA's Journal of Aircraft, Vol. 45, No. 6, Nov-Dec 2008. Soft copy of > this article can be downloaded from the publications list on my > website i.e., http://www.aero.iitb.ac.in/~rkpant. The methodology is > available with me as a code in FORTRAN. > > Similar methodologies for conceptual design of remotely controlled > airships and aerostats are also available with us on MS-EXCEL > spreadsheets. > > If anyone would like to collaborate with me in developing these > methodologies further, please do contact me by e-mail. > > Rajkumar Pant > > On Fri, Jun 5, 2009 at 11:30 PM, <the-list-request@...> > wrote: >> >> Send The-List mailing list submissions to >> the-list@... >> >> To subscribe or unsubscribe via the World Wide Web, visit >> >> http://airshipworld.info/mailman/listinfo/the-list_airshipworld.info >> or, via email, send a message with subject or body 'help' to >> the-list-request@... >> >> You can reach the person managing the list at >> the-list-owner@... >> >> When replying, please edit your Subject line so it is more specific >> than "Re: Contents of The-List digest..." >> >> >> Today's Topics: >> >> 1. Fwd: Auto-discard notification (Andreas Grunewald) >> 2. Re: Fwd: Auto-discard notification (brunians@...) >> >> >> ---------------------------------------------------------------------- >> >> Message: 1 >> Date: Thu, 4 Jun 2009 23:16:41 +0200 >> From: Andreas Grunewald <airshipworld@...> >> Subject: [Airshipworld List] Fwd: Auto-discard notification >> To: the-list@... >> Message-ID: >> <59c4bfbd0906041416ge3ee02bj28c9fb5af86b7445@...> >> Content-Type: text/plain; charset=ISO-8859-1 >> >> ---------- Forwarded message ---------- >> From:?dude6935 <jake6935@...> >> To:?the-list@... >> Date:?Tue, 2 Jun 2009 18:23:32 -0700 (PDT) >> Subject:?Re: [Airshipworld List] Designing Airships - bringing our >> collective knowledge together >> >> >> >> 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 >> > -- >> > Editor of Airshipworld >> > -------------------------------------------------------- >> > Visit the Airshipworld Blog at >> > http://airshipworld.blogspot.com >> > -------------------------------------------------------- >> > >> > _______________________________________________ >> > The-List mailing list >> > The-List@... >> > http://airshipworld.info/mailman/listinfo/the-list_airshipworld.info >> > >> > >> >> 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. >> >> -- >> View this message in context: >> http://www.nabble.com/Designing-Airships---bringing-our-collective-knowledge-together-tp18236111p23843885.html >> Sent from the The Airshipworld Mailinglist mailing list archive at >> Nabble.com. >> >> >> >> ------------------------------ >> >> Message: 2 >> Date: Thu, 4 Jun 2009 17:34:06 -0400 (EDT) >> From: brunians@... >> Subject: Re: [Airshipworld List] Fwd: Auto-discard notification >> To: the-list@... >> Message-ID: <1569.72.171.0.141.1244151246.squirrel@...> >> Content-Type: text/plain;charset=iso-8859-1 >> >> No market. >> >> Sounds like a fun project. >> >> But I don't think there is a market. There aren't thousands, or even >> hundreds of airship designers out there. >> >> >> . >> >> >> >> > ---------- Forwarded message ---------- >> > From:?dude6935 <jake6935@...> >> > To:?the-list@... >> > Date:?Tue, 2 Jun 2009 18:23:32 -0700 (PDT) >> > Subject:?Re: [Airshipworld List] Designing Airships - bringing our >> > collective knowledge together >> > >> > >> > >> > 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 >> >> -- >> >> Editor of Airshipworld >> >> -------------------------------------------------------- >> >> Visit the Airshipworld Blog at >> >> http://airshipworld.blogspot.com >> >> -------------------------------------------------------- >> >> >> >> _______________________________________________ >> >> The-List mailing list >> >> The-List@... >> >> http://airshipworld.info/mailman/listinfo/the-list_airshipworld.info >> >> >> >> >> > >> > 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. >> > >> > -- >> > View this message in context: >> > http://www.nabble.com/Designing-Airships---bringing-our-collective-knowledge-together-tp18236111p23843885.html >> > Sent from the The Airshipworld Mailinglist mailing list archive at >> > Nabble.com. >> > >> > _______________________________________________ >> > The-List mailing list >> > The-List@... >> > http://airshipworld.info/mailman/listinfo/the-list_airshipworld.info >> > >> >> >> >> >> >> ------------------------------ >> >> _______________________________________________ >> The-List mailing list >> The-List@... >> http://airshipworld.info/mailman/listinfo/the-list_airshipworld.info >> >> >> End of The-List Digest, Vol 14, Issue 1 >> *************************************** > > > > -- > Dr. Rajkumar S. Pant > Associate Professor, > Aerospace Engineering Department, > IIT Bombay, Powai, Mumbai- 400076 > India > > Ph: +91-(0)22-25767127 (Off.) > +91-(0)22-25764115 (Lab.) > +91-(0)22-25722602 (Fax.) > +91-(0)22-25768127 (Res.) > URL: http://www.aero.iitb.ac.in/~rkpant > http://www.aero.iitb.ac.in/~airships > > _______________________________________________ > The-List mailing list > The-List@... > http://airshipworld.info/mailman/listinfo/the-list_airshipworld.info > _______________________________________________ The-List mailing list The-List@... http://airshipworld.info/mailman/listinfo/the-list_airshipworld.info |
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