Turbulence Modeling of Torsional Couette Flows
The present study considers the numerical modeling of the turbulent flow inside a rotor-stator cavity subjected or not to a superimposed throughflow. Extensive numerical predictions based on one-point statistical modeling using a low Reynolds number second-order full stress transport closure (RSM mo...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2008-01-01
|
| Series: | International Journal of Rotating Machinery |
| Online Access: | http://dx.doi.org/10.1155/2008/635138 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832560911772024832 |
|---|---|
| author | Sofia Haddadi Sébastien Poncet |
| author_facet | Sofia Haddadi Sébastien Poncet |
| author_sort | Sofia Haddadi |
| collection | DOAJ |
| description | The present study considers the numerical modeling of the turbulent flow inside a rotor-stator cavity subjected or not to a superimposed throughflow. Extensive numerical predictions based on one-point statistical modeling using a low Reynolds number second-order full stress transport closure (RSM model) are performed mainly in the case of turbulent flows with merged boundary layers known as turbulent torsional Couette flows and belonging to regime III of Daily and Nece (1960). The RSM model has already shown its capability of predicting accurately the mean and turbulent fields in various rotating disk configurations (Poncet, 2005; Poncet et al., 2005, 2007, 2008). For the first time, a detailed mapping of the hydrodynamic flow over a wide range of rotational Reynolds numbers (180 000≤Re≤10 000 000), aspect ratios of the cavity (0.02≤G≤0.05), and flow rate coefficients (−10000≤Cw≤10000) is here provided in the turbulent torsional Couette flow regime. |
| format | Article |
| id | doaj-art-e8b553f717074d2ea63efbea7793beea |
| institution | Kabale University |
| issn | 1023-621X 1542-3034 |
| language | English |
| publishDate | 2008-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-e8b553f717074d2ea63efbea7793beea2025-02-03T01:26:27ZengWileyInternational Journal of Rotating Machinery1023-621X1542-30342008-01-01200810.1155/2008/635138635138Turbulence Modeling of Torsional Couette FlowsSofia Haddadi0Sébastien Poncet1Laboratoire M2P2, UMR 6181, CNRS, Universités d'Aix-Marseille, IMT la Jetée, Technopôle Château-Gombert, 38 rue F. Joliot-Curie, 13451 Marseille Cédex 20, FranceLaboratoire M2P2, UMR 6181, CNRS, Universités d'Aix-Marseille, IMT la Jetée, Technopôle Château-Gombert, 38 rue F. Joliot-Curie, 13451 Marseille Cédex 20, FranceThe present study considers the numerical modeling of the turbulent flow inside a rotor-stator cavity subjected or not to a superimposed throughflow. Extensive numerical predictions based on one-point statistical modeling using a low Reynolds number second-order full stress transport closure (RSM model) are performed mainly in the case of turbulent flows with merged boundary layers known as turbulent torsional Couette flows and belonging to regime III of Daily and Nece (1960). The RSM model has already shown its capability of predicting accurately the mean and turbulent fields in various rotating disk configurations (Poncet, 2005; Poncet et al., 2005, 2007, 2008). For the first time, a detailed mapping of the hydrodynamic flow over a wide range of rotational Reynolds numbers (180 000≤Re≤10 000 000), aspect ratios of the cavity (0.02≤G≤0.05), and flow rate coefficients (−10000≤Cw≤10000) is here provided in the turbulent torsional Couette flow regime.http://dx.doi.org/10.1155/2008/635138 |
| spellingShingle | Sofia Haddadi Sébastien Poncet Turbulence Modeling of Torsional Couette Flows International Journal of Rotating Machinery |
| title | Turbulence Modeling of Torsional Couette Flows |
| title_full | Turbulence Modeling of Torsional Couette Flows |
| title_fullStr | Turbulence Modeling of Torsional Couette Flows |
| title_full_unstemmed | Turbulence Modeling of Torsional Couette Flows |
| title_short | Turbulence Modeling of Torsional Couette Flows |
| title_sort | turbulence modeling of torsional couette flows |
| url | http://dx.doi.org/10.1155/2008/635138 |
| work_keys_str_mv | AT sofiahaddadi turbulencemodelingoftorsionalcouetteflows AT sebastienponcet turbulencemodelingoftorsionalcouetteflows |