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Reynolds Number - Numberphile

Numberphile · explainer · Watch on YouTube

Everyday physics & science demosRecreational & visual mathFundamental physics

What it is

Numberphile with Tom Crawford of Oxford explains the Reynolds number, the second of three videos on Navier-Stokes and fluid flow, with demonstrations of laminar versus turbulent behavior.

Why Hacker News recommends it

HN recommends it as an accessible layperson's introduction to the Reynolds number and fluid dynamics scales.

  • 3 people recommended it
  • 3 different months
  • 0 strong recommendations
  • first 2019, last 2021

What HN commenters said

  1. “I think this is a good lay-person's introduction to basis of Kolmogorov's length scale, specifically the Reynold's number”

    Layperson introduction to Reynolds number and Kolmogorov scales

    eindiran, 2019-12 · Recommendation · in “First mathematical proof for a key law of turbulence in fluid mechanics”

  2. “There are some nice YouTube videos out there to ramp you up to understanding Purcell 1977 better as a layman with undergrad maths”

    Helps layman understand Purcell 1977 and low Reynolds number

    bgilroy26, 2020-11 · Recommendation · in “Single-Celled Organism Appears to Make Decisions (2019)”

  3. “There is pretty a good video introduction to Navier-Stokes here”

    Good video introduction to Navier-Stokes, part 2

    dagw, 2021-08 · Recommendation · in “Tesla valve”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: reynolds number, navier-stokes, turbulence, numberphile, fluid mechanics

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