Re: [FRIAM] Hot Air, and Compressibilty

2009-11-28 Thread Robert Holmes
NASA have got a Beginner's Guide to Aeronauticshttp://www.grc.nasa.gov/WWW/K-12/airplane/index.htmlthat's worth looking at. It's includes a section on compressible aerodynamics http://www.grc.nasa.gov/WWW/K-12/airplane/bgc.html, which - as Peter points out - is not the regime that these turbines

Re: [FRIAM] Hot Air, and Compressibilty

2009-11-28 Thread Nicholas Thompson
Look, I know I'm wrong here, but Doesnt greater density imply compression? N Nicholas S. Thompson Emeritus Professor of Psychology and Ethology, Clark University (nthomp...@clarku.edu) http://home.earthlink.net/~nickthompson/naturaldesigns/ http://www.cusf.org [City University of Santa

[FRIAM] Array Interference

2009-11-28 Thread plissaman
Nick notes that there's something funny if an array reduces effective wind for a peleton of sweaty b icy clistes, but increases it for a bunch of spinning turbines. And he's dead right!  A nd these are legitimate, rational questions that an intelligen t layman should ask. The answer is that

Re: [FRIAM] Array Interference

2009-11-28 Thread Nicholas Thompson
Thank you, Peter. You are very kind to take the question seriously. Asking a question is like making a mess. Doing it is alot easier than undoing it. I am particularly puzzled by the manner in which incompressibility would seem to disturb the ways in which people talk about meteorology.

Re: [FRIAM] Array Interference

2009-11-28 Thread Marcus Daniels
plissa...@comcast.net wrote: I was concerned at his naive statement that the power increases because the rotational speed increases. Wouldn't it be remarkable for these Caltech guys (ok, trained in aerodynamics but researching biopropulsion) to not hold torque fixed in their models? Marcus

Re: [FRIAM] Array Interference

2009-11-28 Thread Marcus Daniels
plissa...@comcast.net wrote: When I study it, I'll brief Friamers on the content, and its validity. Looking forward to that! Thanks, Marcus FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's

[FRIAM] fluid dynamics and art

2009-11-28 Thread Marcus Daniels
Hi, Steve wrote: SimTable (tm) is always in need of more notional models to demonstrate it's utility across a wide variety of domains, especially those likely to be involved in public-policy decisions. Also, the SF Complex art crowd might be interested in looking at interactive exhibits using