Percolation

영상

Percolation

저작권

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크레딧

어떤 다공성 고체가 작은 채널들의 네트워크를 가지고 있는데, 각각의 채널들은 특정 확률로 열려있거나 닫혀있다고 가정합시다. 이 확률에 따라 과연 고체 안으로 유체가 흐를 수 있을까요?

각 모서리는 확률 p로 열려있습니다. 열리지 않은 모서리는 닫혀있습니다. 변수 p는 0과 1사이의 값입니다.

닫힌 모서리는 청록색이고, 열린 모서리는 보라색인데, 왼쪽 경계에서 열린 모서리만 거쳐서 도달할 수 있는 열린 모서리는 주황색입니다. p가 ½에 가까울 때, 주황색 부분이 극적으로 증가하는데, 이를 percolation threshold이라고 합니다.

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