Reaction-diffusion systems
From GenerativeArt
(Difference between revisions)
(New page: __FORCETOC__ == Chemical Systems == === Catalyst === Helps a reaction to take place quickly without being "used up" itself {{SingleImage|imageWidthPlusTen=350|imageURL=http://www.viz.t...) |
Current revision (21:55, 18 September 2013) (view source) (→The Amazing Belousov-Zhabotinskii Reaction) |
||
=== Catalyst === | === Catalyst === | ||
| - | + | A catalyst helps a reaction to take place quickly without itself being consumed | |
{{SingleImage|imageWidthPlusTen=540|imageURL=http://www.viz.tamu.edu/courses/viza658/wiki/alife/03.jpg|caption=Catalyst work by providing molecular template that help "line up" bonding sites.}} | {{SingleImage|imageWidthPlusTen=540|imageURL=http://www.viz.tamu.edu/courses/viza658/wiki/alife/03.jpg|caption=Catalyst work by providing molecular template that help "line up" bonding sites.}} | ||
| - | |||
=== Auto-catalysis === | === Auto-catalysis === | ||
where <i>f</i> is known as thc 'stoichiometric factor'. In the simplest computer analyses, <i>f</i> is assumed to be a constant, say <i>f</i> ≈ 1. | where <i>f</i> is known as thc 'stoichiometric factor'. In the simplest computer analyses, <i>f</i> is assumed to be a constant, say <i>f</i> ≈ 1. | ||
| - | In modelling used to match complex oscillations, wc attempt to allow f (the number of bromide ions produced as two cerium ions are reduced) to be a function of the instantaneous concentrations of other species, such as HOBr. Process C sees the blue change to red and resets the chemical clock for the next oscillation. | + | In modelling used to match complex oscillations, wc attempt to allow f (the number of bromide ions produced as two cerium ions are reduced) to be a function of the instantaneous concentrations of other species, such as HOBr. Process C sees the blue change to red and resets the chemical clock for the next oscillation.<br /> |
| + | == Belousov-Zhabotinskii Reaction demonstration videos== | ||
| - | [http://www.youtube.com/watch?v=8R33KWPmqlo BZ Reaction demo video - Steven Strogatz] | + | [http://www.youtube.com/watch?v=8R33KWPmqlo BZ Reaction demo video - Steven Strogatz] <br /> |
| + | [http://www.youtube.com/watch?v=IBa4kgXI4Cg A shallow BZ Reaction showing patterning similar to reaction-diffusion] <br /> | ||
| + | [http://www.youtube.com/watch?v=ew7juIUGKZw A four color chemical oscillator] <br /> | ||
| + | [http://www.youtube.com/watch?v=nEncoHs6ads A 13+ minute documentary about Belousov & Zhabotinskii as well as nicely produced demos and graphs] <br /> | ||
