Publicação

Flow dynamics studies in the NETmix reactor for a large range of flowrate ratios between feed streams

Detalhes bibliográficos
Resumo:	The mixing dynamics that occur inside the NETmix reactor have been previously thoroughly studied for equal feed streams distributed through the inlets. To broaden the applicability of this static mixer, this work intends to expand the knowledge of the mixing dynamics mechanisms for cases where dissimilar inlet flowrates are imposed. Computational Fluid Dynamics (CFD) tools were used to simulate flow dynamics experiments in a reduced NETmix geometry for different inlet flowrate ratios. The simulation results show that this reactor can attain the desirable condition of similar outlet flowrates for several dissimilar inlet flow conditions. A flow dynamics analysis enabled the determination of the natural frequency of oscillation of the flow and related it to the volume of the chambers occupied by vortices. Finally, the velocity fluctuations at the centre of NETmix chambers were characterised in terms of the intensity of turbulence.
País:	Portugal
Tipo de documento:	journal article
Tipo de acesso:	Aberto
Instituição associada:	Repositório Aberto da Universidade do Porto
Idioma:	inglês
Origem:	Repositório Aberto da Universidade do Porto

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conditionsOfAccess_str	open access
country_str	PT
description	The mixing dynamics that occur inside the NETmix reactor have been previously thoroughly studied for equal feed streams distributed through the inlets. To broaden the applicability of this static mixer, this work intends to expand the knowledge of the mixing dynamics mechanisms for cases where dissimilar inlet flowrates are imposed. Computational Fluid Dynamics (CFD) tools were used to simulate flow dynamics experiments in a reduced NETmix geometry for different inlet flowrate ratios. The simulation results show that this reactor can attain the desirable condition of similar outlet flowrates for several dissimilar inlet flow conditions. A flow dynamics analysis enabled the determination of the natural frequency of oscillation of the flow and related it to the volume of the chambers occupied by vortices. Finally, the velocity fluctuations at the centre of NETmix chambers were characterised in terms of the intensity of turbulence.
documentTypeURL_str	http://purl.org/coar/resource_type/c_6501
documentType_str	journal article
id	240c33fa-7550-4915-b264-fe46c3a08245
identifierHandle_str	https://hdl.handle.net/10216/162687
language	eng
relatedInstitutions_str_mv	Repositório Aberto da Universidade do Porto
resourceName_str	Repositório Aberto da Universidade do Porto
spellingShingle	Flow dynamics studies in the NETmix reactor for a large range of flowrate ratios between feed streams
title	Flow dynamics studies in the NETmix reactor for a large range of flowrate ratios between feed streams