The unexpected connection between brewing coffee and understanding turbulence

Researchers have discovered an intriguing connection between brewing coffee and understanding fluid turbulence. Using statistical mechanics, they found that the transition between laminar (smooth) and turbulent (chaotic) flow in fluids mirrors the process of directed percolation in coffee brewing. By simulating puff behavior in pipes and using pressure sensors, they demonstrated that the laminar-turbulent transition aligns with directed percolation. This insight helps explain how turbulence forms and dissipates, much like the optimal flow of water through coffee grounds to make a perfect cup of coffee.

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