Modern civilization depends on the transport of liquid and gases in systems of pipes, just as humans depend on the transport of blood through arteries and veins1. As fluids move through pipes, they encounter friction due to the interaction between the fluid and the pipe wall. At low flow rates, the flow is laminar — smooth and predictable — and the power requirements for pumping it are comparatively low. However, laminar flow is difficult to achieve and in most pipe systems the flow is turbulent; that is, it exhibits irregular motions that occur over a wide range of length and timescales. These turbulent fluctuations increase resistance, resulting in higher pumping costs compared with laminar flow. So, how can we keep pipe flow as smooth as possible? Writing in Nature, Scarselli et al.2 report a strategy that is inspired by the pipe system closest to our hearts, the cardiovascular system.
Competing Interests
The author declares no competing interests.
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September 06, 2023 at 10:23PM
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Cardiac cycle inspires optimized pipe flow - Nature.com
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