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| 一个理想化的空间自发对称性破缺的例子是,我们有两个盒子的材料被一个可渗透的薄膜分开,这样材料可以在两个盒子之间扩散。我们假设在每个盒子中都有相同的布鲁塞尔振子,并且具有几乎相同的初始条件。(见 Prigogine 参考文献) | | 一个理想化的空间自发对称性破缺的例子是,我们有两个盒子的材料被一个可渗透的薄膜分开,这样材料可以在两个盒子之间扩散。我们假设在每个盒子中都有相同的布鲁塞尔振子,并且具有几乎相同的初始条件。(见 Prigogine 参考文献) |
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| :<math>{d \over dt}[ X ] = [A ] + [ X ]^2 [Y ] - [B ] [X ] - [X ] \,</math> | | :<math>{d \over dt}[ X ] = [A ] + [ X ]^2 [Y ] - [B ] [X ] - [X ] \,</math> |
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− | <math>{d \over dt}[ X_1 ] = [A ] + [ X _1]^2 [Y_1 ] - [B ] [X_1 ] - [X_1 ] + D_x\left( X_2 - X_1 \right)\,</math>
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| :<math>{d \over dt}[ Y ] = [B ] [X ] - [ X ]^2 [Y ] \,</math> | | :<math>{d \over dt}[ Y ] = [B ] [X ] - [ X ]^2 [Y ] \,</math> |
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− | <math>{d \over dt}[ Y_1 ] = [B ] [X_1 ] - [ X_1 ]^2 [Y_1 ] + D_y\left( Y_2 - Y_1\right) \,</math>
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| where, for convenience, the rate constants have been set to 1. | | where, for convenience, the rate constants have been set to 1. |
− | 其中,为了方便起见,速率常数被设置为1。 | + | 其中,为了方便起见,速率常数被设置为1。 |
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| <math>{d \over dt}[ X_2 ] = [A ] + [ X _2]^2 [Y_2 ] - [B ] [X_2 ] - [X_2 ] + D_x\left( X_1 - X_2 \right)\,</math> | | <math>{d \over dt}[ X_2 ] = [A ] + [ X _2]^2 [Y_2 ] - [B ] [X_2 ] - [X_2 ] + D_x\left( X_1 - X_2 \right)\,</math> |
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| [[File:080205 Brusselator picture.jpg|thumb|right|350px|The Brusselator in the unstable regime. A=1. B=2.5. X(0)=1. Y(0)=0. The system approaches a [[limit cycle]]. For B<1+A the system is stable and approaches a [[Fixed point (mathematics)|fixed point]].|链接=Special:FilePath/080205_Brusselator_picture.jpg]] | | [[File:080205 Brusselator picture.jpg|thumb|right|350px|The Brusselator in the unstable regime. A=1. B=2.5. X(0)=1. Y(0)=0. The system approaches a [[limit cycle]]. For B<1+A the system is stable and approaches a [[Fixed point (mathematics)|fixed point]].|链接=Special:FilePath/080205_Brusselator_picture.jpg]] |
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