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Thinking about Science with David Hukins

Science isn’t about remembering a lot of facts; it is a way of thinking that helps us to understand the world and how it works.

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Month: October 2020

20.37 Poiseuille’s equation

October 11, 2020 David HukinsLeave a comment

Before you read this, I suggest you read posts 20.34 and 20.36. Poiseuille’s equation (highlighted in yellow above) enables us to calculate the rate of flow, R (volume divided by time), of a liquid of viscosity Ƞ in a narrow horizontal tube of radius a and length L, when there is a pressure difference, Δp,… Continue reading 20.37 Poiseuille’s equation

20.36 The Navier-Stokes equation

October 1, 2020October 11, 2020 David HukinsLeave a comment

Before you read this, I suggest you read posts 17.15, 20.34 and 20.35. The equation highlighted in yellow, above, is the Navier-Stokes equation for incompressible flow of a fluid. A more complicated form of this equation can be used to explain the flow of compressible fluids. For more information on incompressible and compressible flow, see… Continue reading 20.36 The Navier-Stokes equation

Recent Posts

  • 21.3 Polar coordinates, circles and spirals
  • 21.2 Nucleic acids
  • 21.1 An electrical simple harmonic oscillator
  • 20.40 Polysaccharides
  • 20.39 Gels

Recent Comments

David Hukins on 20.10 Toughness
Peter Purslow on 20.10 Toughness
strangeset on 19.8 Wave energy
strangeset on 16.1 Drug safety testing
Peter Purslow on 17.48 Moles

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