gtspring2009:research_projects:siminos:blog
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gtspring2009:research_projects:siminos:blog [2009/02/10 07:27] gibson |
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| :-( I cannot get dokuwiki flashplayer plugin to work so I have uploaded avi files on flickr and embedded here. | :-( I cannot get dokuwiki flashplayer plugin to work so I have uploaded avi files on flickr and embedded here. | ||
| <sub>{{gtspring2009:gibson.png?14}}</sub> Can you leave your broken dokuwiki plugin code in the blog so that I can diagnose it? //John Gibson 2009-02-10 10:18 EST// | <sub>{{gtspring2009:gibson.png?14}}</sub> Can you leave your broken dokuwiki plugin code in the blog so that I can diagnose it? //John Gibson 2009-02-10 10:18 EST// | ||
| + | {{:siminos.png?14}} Well, this was before you've posted instructions on uploading movies, now I know what was wrong. I like the quality of the movies in flickr so I will not remove them. I'll try flashplayer plugin next time. No time to get rid of gray background and crop, sorry. --- //[[siminos@gatech.edu|Evangelos Siminos]] 2009-02-16 13:34// | ||
| :-( I also got corrupted avi files from matlab, so I had to modify makemovie.m to generate png frames and then used dvd-slideshow to generate the movie (in vob format) | :-( I also got corrupted avi files from matlab, so I had to modify makemovie.m to generate png frames and then used dvd-slideshow to generate the movie (in vob format) | ||
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| :!: Laminar state's least contracting eigenvalue is very small (hopefully it is listed in a paper with Halcrow, and we have the discussion in one of the old Gibson's blogs, hard to fish out which one), hence once a trajectory gets close to death, it dies sloooowly. It's worth your time to go through John's derivation, as it is the only set of stability eigenvalues that can be computed anlytically. Contraction rate is slow presumably because laminar state is the least dissipation state, so small smooth perturbations dissipate away very slowly. --- //[[predrag.cvitanovic@physics.gatech.edu|Predrag Cvitanovic]] 2009-02-10 04:07// | :!: Laminar state's least contracting eigenvalue is very small (hopefully it is listed in a paper with Halcrow, and we have the discussion in one of the old Gibson's blogs, hard to fish out which one), hence once a trajectory gets close to death, it dies sloooowly. It's worth your time to go through John's derivation, as it is the only set of stability eigenvalues that can be computed anlytically. Contraction rate is slow presumably because laminar state is the least dissipation state, so small smooth perturbations dissipate away very slowly. --- //[[predrag.cvitanovic@physics.gatech.edu|Predrag Cvitanovic]] 2009-02-10 04:07// | ||
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| + | :-) After discussing with John we concluded it could as well be an artifact of matlab rescaling the vectors' magnitudes in the movies. The state comes very close to laminar as one can see by looking at the L2 norm. --- //[[siminos@gatech.edu|Evangelos Siminos]] 2009-02-16 13:34// | ||
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| + | {{:gtspring2009:pc.png|}} moved the two continuous symmetry reduction papers by Rowley and Marsden to [[http://www.channelflow.org/dokuwiki/doku.php/chaosbook:continuous|ChaosBook.org blog, chapter "Continuous symmetries"]] --- //[[predrag.cvitanovic@physics.gatech.edu|Predrag Cvitanovic]] 2009-02-22 16:17// | ||
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gtspring2009/research_projects/siminos/blog.1234279649.txt.gz ยท Last modified: 2009/02/10 07:27 by gibson
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