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Edited: Jul 12, 2023

What is the relationship between shear stress and shear strain rate in the case of Newtonian fluids?

Ans: There is a linear relationship between shear stress and shear strain rate in Newtonian fluids.

𝜏 ∝ du/dy

This relationship does not hold true in the case of non-newtonian fluids like shear thickening or shear thinning fluids or Bingham plastics.

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What is the relationship between shear stress and shear strain rate in the case of Newtonian fluids?

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