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IEVref: | 113-03-34 | ID: | |

Language: | en | Status: Standard | |

Term: | dynamic viscosity | ||

Synonym1: | viscosity [Preferred] | ||

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Symbol: | η
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Definition: | for a fluid with laminar flow in x-direction, thus for which v_{y} = v_{z} = 0 and v_{x} = v_{x} (z) ≥ 0, where x, y, z are Cartesian coordinates, scalar quantity characterizing internal friction and equal to $\frac{{\tau}_{xz}}{d{v}_{x}/dz}$, where τ_{xz} is the shear stress in the fluidNOTE The coherent SI unit of dynamic viscosity is pascal second, Pa·s. | ||

Publication date: | 2011-04 | ||

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Internal notes: | 2017-06-02: Cleanup - Remove Attached Image 113-03-34en.gif | ||

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NOTE The coherent SI unit of dynamic viscosity is pascal second, Pa·s.