Viscosity the stickiness of fluids v ( y ) ratio between - - PowerPoint PPT Presentation

Viscosity

the “stickiness” of fluids 휇 ≡ 휏 (

Δv Δy)

ratio between shear and strain

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Figure CC-0 Olivier Cleynen 2|5

Figure CC-0 Olivier Cleynen 3|5

Force will increase

∙ with increasing A ∙ with increasing Δv ∙ with decreasing Δy ∙ with increasing stickiness (viscosity)

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Viscosity

휇 ≡

F A

(

Δv Δy)

= 휏 (

Δv Δy)

ratio between shear 휏 (effort) and strain dv/ dy (deformation)

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