Applications of a stretch model to mixing, diffusion, and reaction in laminar and turbulent flows | Zendy

Ranz William E. | Zendy

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Applications of a stretch model to mixing, diffusion, and reaction in laminar and turbulent flows

Author(s) -

Ranz William E.

Publication year - 1979

Publication title -

aiche journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.958

H-Index - 167

eISSN - 1547-5905

pISSN - 0001-1541

DOI - 10.1002/aic.690250105

Subject(s) - laminar flow , turbulence , mixing (physics) , mechanics , static mixer , vortex , diffusion , turbulent diffusion , molecular diffusion , chemistry , flow (mathematics) , thermodynamics , shear flow , materials science , physics , engineering , metric (unit) , operations management , quantum mechanics

In a Lagrangian frame of reference based on lamina (fluid filament) thickness and in a warped time scale based on a single, flow dependent quantity, mixing, diffusion, and reaction can be described in a relatively simple way. Applications are presented for stretch and fold in taffy pull, egg beater and static mixer, shear stretch, stretch of laminae in a vortex, mixing with diffusion, reaction rate controlled by diffusion of reactant through a product layer, and very fast reactions in a turbulent flow.

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