# Fluidic Logic

Fluidic logic (fluidics) uses specially designed fluid paths to perform logic operations, such as AND, OR, and NOT gates. In electronics logical operations underpin all the digital devices that depend on CPUs for their brains. Using Computational Fluid Dynamics (CFD) we can quickly explore potential fluidic components.

### OR Gate

A |
B |
Output |

0 | 0 | 0 |

0 | 1 | 1 |

1 | 0 | 1 |

1 | 1 | 1 |

A fluidic OR gate consists of two inputs, a sink, and an output.

CFD simulation of A = 1, B = 0, Output = 1

CFD simulation of A = 1, B = 0, Output = 1

### AND Gate

A |
B |
Output |

0 | 0 | 0 |

0 | 1 | 0 |

1 | 0 | 0 |

1 | 1 | 1 |

A fluidic AND gate consists of two inputs, a sink, and an output.

CFD simulation of A = 1, B = 1, Output = 1

CFD simulation of A = 1, B = 1, Output = 1

### NOT Gate

A |
Output |

0 | 1 |

1 | 0 |

A fluidic NOT gate consists of one input, a source, a sink, and an output, similar to the AND gate.

CFD simulation of A = 0, Output = 1

CFD simulation of A = 0, Output = 1

### Fluidic Circuits

With these basic logic building blocks you can develop more complex fluidic circuits, which would require careful impedance matching at each junction.

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