ETDs @PUC-Rio
| Título: | EXPERIMENTAL STUDY OF AXIAL FLOW THROUGH AND ANNULAR REGION WITH INNER CYLINDER ROTATION | ||||||||||||||||||||||||||||||||||||
| Autor: |
JULIO MANUEL BARROS JUNIOR |
||||||||||||||||||||||||||||||||||||
| Colaborador(es): |
LUIS FERNANDO ALZUGUIR AZEVEDO - Orientador |
||||||||||||||||||||||||||||||||||||
| Catalogação: | 08/MAI/2008 | Língua(s): | PORTUGUESE - BRAZIL |
||||||||||||||||||||||||||||||||||
| Tipo: | TEXT | Subtipo: | THESIS | ||||||||||||||||||||||||||||||||||
| Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
||||||||||||||||||||||||||||||||||||
| Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=11615&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=11615&idi=2 |
||||||||||||||||||||||||||||||||||||
| DOI: | https://doi.org/10.17771/PUCRio.acad.11615 | ||||||||||||||||||||||||||||||||||||
| Resumo: | |||||||||||||||||||||||||||||||||||||
|
The flow between concentric cylinders with an inner
rotating cylinder with an imposed pressure-driven axial
flow was studied experimentally. The radius ratio was (n) =
0, 64 and the aspect ration was (r) = 265. Friction factor
and velocity fields were studied for four rotations of the
inner cylinder and for laminar, transitional, and turbulent
flow. Velocity fields were measure by Particle Image
Velocimetry (PIV). The results for friction factor showed
that the influence of the rotation is more apparent for
laminar and transitional flow, increasing with the rotation
of the inner cylinder. For these two flows,
the increasing was 100% of f/f0. For turbulent flow, the
increasing was gradualy decreasing to 10% of f/f0 for
Reaxial = 8458. Instantaneous velocity fields showed
complex flow patterns. The time average axial velocity
profiles showed a top hat like form with the increasing of
inner cylinder rotation and axial Reynolds numbers. For
turbulent flow, the influence of rotation in the velocity
profiles was small.
|
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||