How Do Swimsuits Influence Laminar Flow and Reduce Drag?

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SUMMARY

This discussion focuses on the influence of swimsuits on laminar flow and drag reduction in water. The student plans to conduct experiments comparing drag measurements of a heavy ball wrapped in swimsuit material versus the ball alone. The key takeaway is that swimsuits are designed to delay the transition from laminar to turbulent flow, thereby reducing skin friction. The discussion also references the mechanism used by dolphin skin to minimize drag, suggesting a biological inspiration for swimsuit design.

PREREQUISITES
  • Basic understanding of fluid mechanics
  • Familiarity with drag measurement techniques
  • Knowledge of buoyancy principles
  • Awareness of laminar and turbulent flow characteristics
NEXT STEPS
  • Research the principles of laminar flow and its significance in fluid dynamics
  • Explore drag measurement methods in aquatic environments
  • Investigate the design features of swimsuits that enhance hydrodynamics
  • Study the biological mechanisms of dolphin skin and its impact on drag reduction
USEFUL FOR

Students in physics or engineering, swimwear designers, athletes interested in performance optimization, and researchers studying fluid dynamics in aquatic environments.

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Hi

I’m student at a french university, I have to present a project about swimsuit and I must carry out experiments. I’ve decided to work on the buoyancy of swimsuits, the flow around it and drag. To measure drag, I think I’ll drop a heavy ball wrapped in swimsuit material in the water and take measures. Then I’ll do the same with just the ball and compare the results.

But I have a problem concerning the flow. I’ve read from a swimsuit manufacturer website that swimsuits help create laminar flow. And that’s what I don’t understand: Why ? And how can I prove it in an experiment ? I know it’s all about fluid mechanics but I haven’t studied that yet.

Thank you so much for your help ^^
 
Physics news on Phys.org
The reduce the skin friction this delaying the transition from laminar to turbulent flow. If you want some insight look up the mechanism dolphin skin uses to reduce their drag while they are swimming.
 

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