Thermal Fluid Flow Transport Phenomenon in Unsteady Rotating Drum during Spin-Down Process
Numerical analysis is performed on unsteady-state thermal fluid flow transport phenomena in a rotating drum heated at constant wall temperature during a spin-down process. Emphasis is placed on the effect of aspect ratio of the drum on the velocity and temperature fields. The governing equations are...
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| Format: | Article |
| Language: | English |
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Wiley
2005-01-01
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| Series: | International Journal of Rotating Machinery |
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| Online Access: | http://dx.doi.org/10.1155/IJRM.2005.197 |
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| author | Shuichi Torii Wen-Jei Yang |
| author_facet | Shuichi Torii Wen-Jei Yang |
| author_sort | Shuichi Torii |
| collection | DOAJ |
| description | Numerical analysis is performed on unsteady-state
thermal fluid flow transport phenomena in a rotating drum heated
at constant wall temperature during a spin-down process. Emphasis
is placed on the effect of aspect ratio of the drum on the
velocity and temperature fields. The governing equations are
discretized by means of a finite-difference technique and
numerically solved to determine the distributions of velocity
vector and fluid temperature in the drum. It is disclosed from the
study that (i) the formation of Ekman boundary layers on both
sidewalls of the drum results in a pair of recirculating flows,
and (ii) an attenuation of the flow velocity is affected by the
aspect ratio of a drum. Results may be used to develop a method to
achieve uniform mixing in an enclosed vessel. |
| format | Article |
| id | doaj-art-1327162699db4a488d0673429e7ba838 |
| institution | Kabale University |
| issn | 1023-621X 1542-3034 |
| language | English |
| publishDate | 2005-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-1327162699db4a488d0673429e7ba8382025-02-03T06:07:30ZengWileyInternational Journal of Rotating Machinery1023-621X1542-30342005-01-012005319720110.1155/IJRM.2005.197Thermal Fluid Flow Transport Phenomenon in Unsteady Rotating Drum during Spin-Down ProcessShuichi Torii0Wen-Jei Yang1Department of Mechanical Engineering and Materials Science, Kumamoto University, Kumamoto 860-8555, JapanMechanical Engineering and College of Engineering, The University of Michigan, Ann Arbor 48109, MI, USANumerical analysis is performed on unsteady-state thermal fluid flow transport phenomena in a rotating drum heated at constant wall temperature during a spin-down process. Emphasis is placed on the effect of aspect ratio of the drum on the velocity and temperature fields. The governing equations are discretized by means of a finite-difference technique and numerically solved to determine the distributions of velocity vector and fluid temperature in the drum. It is disclosed from the study that (i) the formation of Ekman boundary layers on both sidewalls of the drum results in a pair of recirculating flows, and (ii) an attenuation of the flow velocity is affected by the aspect ratio of a drum. Results may be used to develop a method to achieve uniform mixing in an enclosed vessel.http://dx.doi.org/10.1155/IJRM.2005.197spin-downEkman boundary layersecondary flowrotational effect numerical analysisrotating drum. |
| spellingShingle | Shuichi Torii Wen-Jei Yang Thermal Fluid Flow Transport Phenomenon in Unsteady Rotating Drum during Spin-Down Process International Journal of Rotating Machinery spin-down Ekman boundary layer secondary flow rotational effect numerical analysis rotating drum. |
| title | Thermal Fluid Flow Transport Phenomenon in Unsteady Rotating Drum
during Spin-Down Process |
| title_full | Thermal Fluid Flow Transport Phenomenon in Unsteady Rotating Drum
during Spin-Down Process |
| title_fullStr | Thermal Fluid Flow Transport Phenomenon in Unsteady Rotating Drum
during Spin-Down Process |
| title_full_unstemmed | Thermal Fluid Flow Transport Phenomenon in Unsteady Rotating Drum
during Spin-Down Process |
| title_short | Thermal Fluid Flow Transport Phenomenon in Unsteady Rotating Drum
during Spin-Down Process |
| title_sort | thermal fluid flow transport phenomenon in unsteady rotating drum during spin down process |
| topic | spin-down Ekman boundary layer secondary flow rotational effect numerical analysis rotating drum. |
| url | http://dx.doi.org/10.1155/IJRM.2005.197 |
| work_keys_str_mv | AT shuichitorii thermalfluidflowtransportphenomenoninunsteadyrotatingdrumduringspindownprocess AT wenjeiyang thermalfluidflowtransportphenomenoninunsteadyrotatingdrumduringspindownprocess |