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| kanzure | streamlines didn't show anything O.o | 00:34 |
|---|---|---|
| gene | ??? | 00:59 |
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| kanzure | "It is difficult to get a man to understand something when his salary depends on him not understanding it". | 03:35 |
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| kanzure | hah | 03:59 |
| kanzure | http://www.csc.fi/english/pages/elmer/examples/marangoni.tar.gz | 03:59 |
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| UtopiahGHML | someone came here few days ago discussing quantative vs qualitative method, http://www.methodspace.com/ could help debatting it | 06:12 |
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| kanzure | http://heybryan.org/shots/2009-03-28_tcross_microfluidics.png | 08:00 |
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| kanzure | so let me get this straight, she wants me to write an essay to get into the home? | 08:21 |
| kanzure | why would I do that? | 08:21 |
| kanzure | http://heybryan.org/bioreactor/2009-03-28_t-junction_microfluidics.avi | 08:37 |
| kanzure | http://heybryan.org/shots/2009-03-28_tcross_microfluidics.png | 08:38 |
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| kanzure | http://www.youtube.com/watch?v=sPY84NelFO4 microfluidics T-junction video (now hosted on youtube) | 09:11 |
| kanzure | hey, what's this about? http://www.youtube.com/watch?v=k-8Cm6Ycr8w | 09:16 |
| kanzure | "c-shaped sieve" any thoughts on how that works? | 09:16 |
| kanzure | http://www.youtube.com/watch?v=Kcxrqf6ounU another type | 09:17 |
| kanzure | their implementation: http://www.youtube.com/watch?v=NxcjhGwg97M&feature=PlayList&p=23E800AA6CD56F52&playnext=1&playnext_from=PL&index=3 | 09:17 |
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| kanzure | http://heybryan.org/bioreactor/Building%20a%20better%20cell%20trap%20-%20Applying%20Lagrangian%20modeling%20to%20the%20design%20of%20microfluidic%20devices%20for%20cell%20biology.pdf | 09:20 |
| kanzure | ^ that's the paper per those youtube videos | 09:20 |
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| kanzure | ack, somehow my 3D model became 2D. that's not good. | 11:36 |
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| kanzure | blah. the model has intersecting triangles. | 12:19 |
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| kanzure | http://heybryan.org/bioreactor/membraneless_filtration/2009-03-28.png | 13:57 |
| kanzure | gene: can you possibly regenerate the STL file, and this time not include any holes? | 13:57 |
| kanzure | I think it's getting messed up. in that image, you see how the red lines don't really go all the way to the outlets. yeah, that's bad. | 13:57 |
| kanzure | and at the center of the spiral, there's no floor. this is after I ran it through 'netgen'- in an attempt to fix what's wrong with the stl file | 13:58 |
| kanzure | there's something like an invalid triangle being generated or something | 13:58 |
| kanzure | so if you can give me the original CAD file in some format like IGES or STEP, I can then generate the proper STL stuff for CFD analysis voodoo magic. | 13:58 |
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| kanzure | or in the mean time, until he gets around to showing up, does anyone know of anything that takes .sldprt files and converts it into anything useful? | 14:17 |
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| gene | I'm here | 14:30 |
| kanzure | gene: can you get me a model of our spiral filter without the holes that we don't want to simulate? | 14:37 |
| kanzure | and in a few different formats- like STL, STEP, IGES, that would be great. | 14:38 |
| gene | trying too | 14:38 |
| kanzure | thank you | 14:38 |
| gene | is that lip thing ok? | 14:38 |
| kanzure | what lip thing? | 14:39 |
| kanzure | is that at the center of the model? | 14:39 |
| gene | no | 14:41 |
| kanzure | then I guess it's ok | 14:41 |
| gene | exporting to .stl in | 14:41 |
| gene | 5 | 14:42 |
| gene | 4 | 14:42 |
| gene | 3 | 14:42 |
| gene | 2 | 14:42 |
| gene | 1 | 14:42 |
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| kanzure | gene: have you sent them yet? | 14:51 |
| gene | wait a minute, I have over 100 tabs open in firefox I'm scrolling over to my gmail tab | 14:52 |
| kanzure | try vertical tabs. | 18:11 |
| gene | jk | 18:11 |
| kanzure | https://addons.mozilla.org/en-US/firefox/addon/5890 | 18:12 |
| gene | I NEEED MOARPOWER | 18:14 |
| bkero | kanzure: tabkit not good enough for you? :P | 18:27 |
| kanzure | technically I don't even use firefox any more | 18:30 |
| kanzure | can anyone figure out how I can trick myself into writing this essay for the home ? | 18:30 |
| kanzure | they have an application form apparently | 18:30 |
| kanzure | so if I fail the essay, do I get de-moted to something lesser than The Home? | 18:30 |
| kanzure | I don't understand | 18:30 |
| * bkero doesn't understand. | 18:31 | |
| kanzure | bkero: my mom is filling out an application form to put me into a home, so she sent me an email asking me to write an essay that they want "to help to get to know me" | 18:33 |
| kanzure | O.o | 18:33 |
| bkero | Oh jesus, I had to do those things | 18:33 |
| bkero | If they ask you 'pirates or ninjas', FLEE as fast as your legs can carry you. | 18:33 |
| bkero | Craigslist can find you a spot in a house in the worst case :) | 18:34 |
| gene | huh? | 18:34 |
| gene | you gonna be here next semester | 18:34 |
| kanzure | I don't know | 18:35 |
| fenn | from the naruto costumes i'd guess ninjas | 18:36 |
| * bkero gags | 18:36 | |
| gene | pirates or ninjas did I mis something | 18:38 |
| kanzure | gene: if I get a job over the summer, the chances increase that I'll be here next semester | 18:38 |
| gene | you could also take advantage of the internet | 18:39 |
| kanzure | wtf is a spirain, btw? | 18:39 |
| gene | aspirain | 18:39 |
| kanzure | in the file name that you sent me | 18:40 |
| kanzure | oh crap, bad font. sorry. | 18:40 |
| gene | huh | 18:40 |
| kanzure | I misinterpreted it because it looked like 'spirain' instead of 'spiral' | 18:40 |
| gene | no that wasn't in the file | 18:41 |
| kanzure | elmergui crashes while meshing your stl file | 18:42 |
| kanzure | "WARNING: intersecting elements 2433 and 268" | 18:42 |
| gene | that's it we're using comsol | 18:43 |
| kanzure | or you just give me the iges and step file like I asked? | 18:43 |
| kanzure | if you hadn't used fucking proprietary software in the first place, we wouldn't have this problem | 18:43 |
| kanzure | let's not repeat the same mistake. | 18:43 |
| kanzure | btw, there's still a problem with the stl file | 18:44 |
| kanzure | http://heybryan.org/bioreactor/membraneless_filtration/2009-03-28_2_problem2.png | 18:45 |
| kanzure | do you know what that is, and can you fix that? | 18:45 |
| kanzure | (that's at the center) | 18:45 |
| gene | well too bad proprietary software is easy to use | 18:45 |
| kanzure | but that doesn't account for upstream effects. | 18:46 |
| fenn | downstream | 18:47 |
| * kanzure takes out his compass | 18:47 | |
| fenn | you guys get all confused because your stream is spiral-shaped | 18:47 |
| kanzure | isn't that what the cfd is supposed to help with | 18:47 |
| kanzure | either of you see the youtube video? | 18:48 |
| kanzure | http://www.youtube.com/watch?v=sPY84NelFO4 | 18:48 |
| gene | did you do that? | 18:49 |
| kanzure | yes | 18:49 |
| gene | hold on | 18:50 |
| gene | oops | 18:56 |
| kanzure | error: TRIG 1 has 2 neighbors (as does TRIG 40, TRIG 1359, 1362, 3224) | 19:06 |
| kanzure | someone's STL exporter utility must suck | 19:06 |
| kanzure | gene: do you know how to fix it? | 19:19 |
| kanzure | specifically it has something to do with the triangles somewher near the bottom just at the origin (in the center) where it starts to curl, on the inner-edge. | 19:19 |
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| gene | well there's a build error there | 19:22 |
| kanzure | oh? what error in particular? | 19:23 |
| gene | I forgot | 19:23 |
| kanzure | but you knew about it? | 19:23 |
| gene | let me rebuild it | 19:23 |
| kanzure | please :( | 19:23 |
| gene | without the circle in the middle | 19:24 |
| kanzure | what will be there instead? | 19:24 |
| gene | nothing | 19:24 |
| kanzure | a wall? | 19:24 |
| gene | as there is no way I can get rid of the build error | 19:24 |
| gene | oh wait it could be the boundary between the bifurcation and the spiral | 19:27 |
| bkero | what http://yro.slashdot.org/article.pl?sid=09/03/28/2134218 | 19:27 |
| kanzure | at the end? I don't know if that's what's causing the problems. | 19:27 |
| kanzure | refresh for some more information on what I at least suspect it might be | 19:30 |
| kanzure | http://heybryan.org/bioreactor/membraneless_filtration/2009-03-28_2_problem2.png | 19:30 |
| kanzure | although that might not be it- since there are some weird things you can do in netgen and zooming in starts to make it look like it's doing some impossible manifold shape | 19:30 |
| gene | what file type do you want it in? | 19:32 |
| kanzure | stl, iges and step please | 19:32 |
| gene | bkero that shit is scary | 19:32 |
| fenn | next up: UN decrees criticism of UN policies as a human rights violation | 19:35 |
| gene | how are we gonna to fend off the UN spacefleet? | 19:36 |
| fenn | pff | 19:36 |
| fenn | with your plasma cannons | 19:36 |
| gene | oh yeah that's right | 19:37 |
| gene | which step type? | 19:38 |
| gene | I've got several, alibre | 19:39 |
| gene | Acis | 19:39 |
| gene | ACIS RX | 19:39 |
| fenn | step should all be the same | 19:39 |
| fenn | ap203 or 214 | 19:39 |
| gene | alibre thene | 19:39 |
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| fenn | um, 209 not 214 | 19:41 |
| kanzure | just as long as you get me two versions of the same thing- one that is saved to STL, and another straight from the CAD model to something that isn't STL but is fairly common | 19:42 |
| gene | I sent you three | 19:43 |
| gene | saved as .stp alibre because it said alibre | 19:44 |
| gene | and alibre is bound to export it best | 19:44 |
| gene | speaking of plasma guns | 19:46 |
| gene | supposedly these plasmoid things can EMP things like missiles | 19:48 |
| fenn | yup | 19:48 |
| gene | I wonder how though, as aren't missiles fairly EMP proof? | 19:48 |
| gene | something about braking radiation? | 19:48 |
| fenn | induced current | 19:48 |
| gene | oh | 19:48 |
| fenn | missiles would need a lot of shielding (mass) to re-route the induced current | 19:48 |
| gene | then I need to make me a plasmoid gun | 19:49 |
| fenn | unless you're talking about brehmsstrahlung | 19:49 |
| gene | papers I read talked about brehmsstrahlung | 19:49 |
| fenn | that's just x-rays, not likely to stop a missile (except for when the plasmoid collides with something) | 19:50 |
| fenn | oh, actually, the plasmoid is neutrally charged isn't it? | 19:51 |
| gene | wait | 19:51 |
| fenn | so it wouldn't induce a current | 19:51 |
| fenn | if it collides with something and the magnetic fields collapse, that energy has to go somewhere | 19:51 |
| gene | yeah | 19:53 |
| gene | they say the magnetic field is 0.5 tesla | 19:53 |
| fenn | that's just the flux density | 19:53 |
| fenn | it's a tiny speck so that's not surprising | 19:54 |
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| gene | Figure 12 is a color copy of a painting rendered by an artist from his own | 19:57 |
| gene | memory which clearly shows a Ball Lightning at the moment of disruption. It s | 19:57 |
| gene | force balance is achieved by the net inward force of the toroidal field with | 19:57 |
| gene | plasma hows two tangential sheets or beams pouring out in opposing directions | 19:57 |
| gene | from a hows two tangential sheets or beams pouring out in opposing directions | 19:57 |
| gene | from a longitudinal rent in the Mantle. The longer beam corresponds | 19:57 |
| gene | to dumping of the Mantle energetic electron sheet that is focused at the vacuum | 19:57 |
| gene | field-Mantle boundary. Here the electron currents confine most of the | 19:57 |
| gene | magnetic energy internally within the Ball Lightning and maintain a net longitudinal | 19:57 |
| gene | orbit as they do so. The focusing at the boundary comes from a balance | 19:57 |
| gene | between inward electric field pressure by a sharp boundary sheath that | 19:57 |
| gene | forms at the vacuum field-plasma interface, and the outward pressure of the | 19:57 |
| gene | magnetic field. Of course, overall inward f ring acting upon the vacuum flux as | 19:57 |
| gene | it links through the "hole" of the ring. In addition the external pressure of the | 19:57 |
| gene | atmosphere results in fluid pressure through the plasma layer to the field via | 19:57 |
| gene | the current/fields interaction. The painting also depicts the much shorter but | 19:57 |
| gene | oppositely directed sheet of ions (probably mixed species) which are much | 19:57 |
| gene | heavier with opposite charge and circulation direction to electrons. Such an | 19:57 |
| gene | observation (as well as other "beamed Ball Lightning") can provide some important | 19:57 |
| gene | es timates on the energetics of the currents in Ball Lightning. This can be done | 19:57 |
| gene | heh interesting 'evidence' | 19:57 |
| gene | kanzure you there? | 20:17 |
| kanzure | yes | 20:17 |
| kanzure | just got done eating, am testing out the stl file in elmergui once I alt+tab away | 20:17 |
| gene | come over to #reprap | 20:17 |
| gene | discussing automatic design | 20:17 |
| kanzure | gene: hey, check out the model near the beginning of the bifurcation (at the pointy tip) | 20:34 |
| kanzure | on the inner wall of the channel at that point, it looks like there's a flap there | 20:34 |
| kanzure | ERROR: Give up because of too many trials. Meshing aborted! | 20:36 |
| kanzure | Meshing done, time = 305.44 sec | 20:36 |
| kanzure | hah | 20:36 |
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| gene | I knew it | 20:42 |
| kanzure | gene: still borkored I think. | 20:58 |
| kanzure | is there a spray-paint-a-bucket-of-pooints mode in blender? | 21:00 |
| gene | don't know I don't use blender | 21:09 |
| kanzure | gene, is there a way you can get rid of the curl next to the input? I think that's causing problems when it's in STL | 21:15 |
| gene | it's a spiral, I can't remove the curl | 21:15 |
| kanzure | what the hell? I thought you were using a CAD program? | 21:16 |
| gene | hold on | 21:22 |
| gene | i'll get rid of bifurcation | 21:22 |
| kanzure | I don't think that's the problem, but if you want, how about you get rid of the bifurcation, then make an STL file; then also try adding filler in between the very curved edge and the input wall | 21:23 |
| kanzure | and make an STL of that too. we can try both. | 21:23 |
| kanzure | oh | 21:35 |
| kanzure | the problem might be that the wall at that point is going past the concavity due to the curl | 21:36 |
| kanzure | http://heybryan.org/bioreactor/membraneless_filtration/2009-03-28_2_problem2.png (bottom image) | 21:37 |
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| gene | i don't know what you want | 22:09 |
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| kanzure | do'h, a 2d image works. | 23:17 |
| gene | it does? | 23:24 |
| gene | for what | 23:24 |
| gene | must know | 23:24 |
| kanzure | for the simulations. | 23:24 |
| gene | SWEET | 23:25 |
| gene | that's all we need to do then | 23:25 |
| kanzure | yeah .. but the issue is that the image has to be very detailed otherwise it becomes pixelated and that's not really good | 23:25 |
| kanzure | but other than that, yeah. | 23:25 |
| kanzure | also, for the record, blender has a plugin to generate spirals and then export into stl | 23:25 |
| kanzure | I was thinking of just generating the image with gnuplot and use a ridiculously large number of points to get a fine detailed image | 23:27 |
| gene | wait a second | 23:36 |
| gene | did you just say image? | 23:36 |
| gene | as in .jpg .bmp and such? | 23:37 |
| gene | can I simulate a flow around mario? | 23:38 |
| kanzure | yes | 23:45 |
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| gene | cool | 23:51 |
| gene | http://fc01.deviantart.com/fs16/f/2007/194/b/a/Super_Mario_Black_and_White_by_Henrique_Meuren.jpg | 23:52 |
| gene | do it | 23:52 |
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