Numerical Investigation of Fluid Forces Acting on a Confined Cylinder with Obstacle Subjected to Axial Flow
This paper focuses on fluid forces acting on a confined cylinder subjected to axial flow in application to fuel assembly dynamic behavior. From the literature, it is difficult to estimate the damping induced by the flow. Therefore, it is proposed to study numerically the damping fluid forces on a cy...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Science and Technology of Nuclear Installations |
| Online Access: | http://dx.doi.org/10.1155/2020/5809175 |
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| _version_ | 1832547079778467840 |
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| author | Guillaume Ricciardi |
| author_facet | Guillaume Ricciardi |
| author_sort | Guillaume Ricciardi |
| collection | DOAJ |
| description | This paper focuses on fluid forces acting on a confined cylinder subjected to axial flow in application to fuel assembly dynamic behavior. From the literature, it is difficult to estimate the damping induced by the flow. Therefore, it is proposed to study numerically the damping fluid forces on a cylinder for various parameters. It has been observed that it increases with the smaller confinement and with the presence of an obstacle and decreases when the Reynolds number increases. Larger values correspond to a greater contribution of pressure forces. Dynamic simulations are compared to the steady ones and give different values, but the order of magnitude and general trend remain the same. Therefore, steady simulations are suitable to have a rough estimation of drag coefficients in dynamics. |
| format | Article |
| id | doaj-art-57fdf792d141403a90f2c3a72db0bb97 |
| institution | Kabale University |
| issn | 1687-6075 1687-6083 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Science and Technology of Nuclear Installations |
| spelling | doaj-art-57fdf792d141403a90f2c3a72db0bb972025-02-03T06:46:08ZengWileyScience and Technology of Nuclear Installations1687-60751687-60832020-01-01202010.1155/2020/58091755809175Numerical Investigation of Fluid Forces Acting on a Confined Cylinder with Obstacle Subjected to Axial FlowGuillaume Ricciardi0CEA CADARACHE DEN/DTN/STCP/LTHC, 13108 Saint-Paul-Lez-Durance Cedex, FranceThis paper focuses on fluid forces acting on a confined cylinder subjected to axial flow in application to fuel assembly dynamic behavior. From the literature, it is difficult to estimate the damping induced by the flow. Therefore, it is proposed to study numerically the damping fluid forces on a cylinder for various parameters. It has been observed that it increases with the smaller confinement and with the presence of an obstacle and decreases when the Reynolds number increases. Larger values correspond to a greater contribution of pressure forces. Dynamic simulations are compared to the steady ones and give different values, but the order of magnitude and general trend remain the same. Therefore, steady simulations are suitable to have a rough estimation of drag coefficients in dynamics.http://dx.doi.org/10.1155/2020/5809175 |
| spellingShingle | Guillaume Ricciardi Numerical Investigation of Fluid Forces Acting on a Confined Cylinder with Obstacle Subjected to Axial Flow Science and Technology of Nuclear Installations |
| title | Numerical Investigation of Fluid Forces Acting on a Confined Cylinder with Obstacle Subjected to Axial Flow |
| title_full | Numerical Investigation of Fluid Forces Acting on a Confined Cylinder with Obstacle Subjected to Axial Flow |
| title_fullStr | Numerical Investigation of Fluid Forces Acting on a Confined Cylinder with Obstacle Subjected to Axial Flow |
| title_full_unstemmed | Numerical Investigation of Fluid Forces Acting on a Confined Cylinder with Obstacle Subjected to Axial Flow |
| title_short | Numerical Investigation of Fluid Forces Acting on a Confined Cylinder with Obstacle Subjected to Axial Flow |
| title_sort | numerical investigation of fluid forces acting on a confined cylinder with obstacle subjected to axial flow |
| url | http://dx.doi.org/10.1155/2020/5809175 |
| work_keys_str_mv | AT guillaumericciardi numericalinvestigationoffluidforcesactingonaconfinedcylinderwithobstaclesubjectedtoaxialflow |