File:Osmosis computer simulation.jpg
Original file (922 × 820 pixels, file size: 93 KB, MIME type: image/jpeg)
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Summary
DescriptionOsmosis computer simulation.jpg |
This is a shot from a three dimensional computer simulation of the process of en:osmosis. The blue en:mesh is impermeable to the larger balls, whereas all of the balls are (in the animated version) bouncing about according to the rules of physical simulation of the kinetics of an ideal gas. Averaged over long period of time, each ball has has the same kinetic energy as each of the other balls, even though at any given moment the velocities are distributed according to the appropriate en:Boltzmann functions. Likewise, each species (in this case color) of balls (as a group) exerts time averaged force (due to the bouncing) upon the walls of the box, which corresponds to the partial en:pressure contribution associated with that group. These properties emerge even though the collision function used in the simulation is trivial, to wit: void Mass::collide (Mass *X) { vector v_cm; v_cm = (velocity*mass+X->velocity*X->mass)/(mass+X->mass); velocity = v_cm*2 - velocity; X->velocity = v_cm*2 - X->velocity; m_bCollision = true; X->m_bCollision = true; }Accordingly, one can make theoretical assumtions about the behaviour of such mixtures according to the application of Dalton's law of partial pressures, and so on, and thereby gain some insights into how certain physical processes really work. |
Date | 3 September 2004 (original upload date) |
Source | Transferred from en.wikipedia |
Author | Original uploader was Lazarus666 at en.wikipedia |
Permission (Reusing this file) |
FAL; Released under the GNU Free Documentation License. |
Licensing
Copyleft: This work of art is free; you can redistribute it and/or modify it according to terms of the Free Art Licence. You will find a specimen of this licence on the Copyleft Attitude site as well as on other sites. http://artlibre.org/licence/lal/enFALFree Art Licensefalsetrue |
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported licence. Subject to disclaimers. | ||
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This licencing tag was added to this file as part of the GFDL licencing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue |
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation Licence, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the licence is included in the section entitled GNU Free Documentation Licence. Subject to disclaimers.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
Original upload log
- 2004-09-03 04:42 Lazarus666 1214×898×8 (85342 bytes) computer simulation of process of osmosis
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:53, 30 April 2011 | 922 × 820 (93 KB) | wikimediacommons>Materialscientist | crop whitespace |
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