Published May 1981
| Version v1
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Study of the influence of diffusion on the flow velocity, for binary mixtures in Poiseuille and Couette flows
Description
The influence of diffusion on the flow of binary mixtures of incompressible fluids in POISEUILLE and COUETTE flows, is studied. The constitutive equations sugested by SAMPAIO and WILLIAMS and by STRUMINSKII for the constituent stress tensor and for the diffusive force are used. Results show that diffusion does not influence the flow in the case of planar and circular COUETTE flows. On the other hand, diffusion does play an important part in planar and circular POISEUILLE flows. (Author)
Availability note (English)
MF available from INIS under the Report Number.Abstract (Portuguese)
Para misturas liquidas binarias, de constante concentracao, estuda-se e quantifica-se a influencia da difusao, nas velocidades de fluxo, em escoamentos classicos de Poiseuille e Couette. Utiliza-se as equacoes constitutivas de SAMPAIO e WILLIAMS para o tensor de tensao das especies constituintes da mistura, e o de STRUMINSKII, para a formulacao da forca difusiva atuante entre tais especies. Os resultados obtidos indicam que nao ha influencia do mecanismo da difusao, nas velocidades de fluxo das especies, nos casos de escoamentos tipo Couette Planar e Couette Circular; para os escoamentos de Poiseuille Planar e Poiseuille Circular os resultados indicam, em funcao da natureza das especies constituintes, influencia significativa do mecanismo em estudo. (Autor)Files
13703235.pdf
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Additional details
Additional titles
- Original title (Portuguese)
- Estudo da influencia da difusao nas velocidades de fluxo, para mistura liquidas binarias em escoamentos classicos de Poiseuille e Couette
Publishing Information
- Imprint Pagination
- 201 p.
- Report number
- INIS-mf--7372
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 13703235
- Subject category
- S42: ENGINEERING;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- BINARY MIXTURES; COUETTE FLOW; INCOMPRESSIBLE FLOW; LAMINAR FLOW
- Descriptors DEC
- DISPERSIONS; FLUID FLOW; MIXTURES; VISCOUS FLOW