Formation of 'Leaf Lines' in Pools: Causes & Solutions

Thread starter katiecat486
Start date Aug 14, 2007
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Formation Lines

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Objects like leaves group at the edges of a pool due to a phenomenon known as "constrained boundary random walk." As leaves drift randomly across the water's surface, influenced by wind and ripples, they stick to the pool's sides upon contact. This sticking behavior leads to a statistical tendency for all leaves to eventually accumulate at the edges. The process continues until most objects are found along the boundary. Understanding this behavior reveals insights into how random movements can lead to clustering effects.

Aug 14, 2007

katiecat486

What causes objects (such as leaves) in the pool to group at the edges?

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Aug 15, 2007

mgb_phys

Science Advisor

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The wet leaves stick to the sides of the pool.
It's called a "constrained boundary random walk" the leaves drift randomly over the surface, blown by wind + ripples but when the touch the side they stick. So statstically eventually all will end up on the edge of the pool.

Sep 11, 2007

katiecat486

Thanks!

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