Flow field analysis of a pentagonal-shaped bridge deck by unsteady RANS
Long-span cable-stayed bridges are susceptible to dynamic wind effects due to their inherent flexibility. The fluid flow around the bridge deck should be well understood for the efficient design of an aerodynamically stable long-span bridge system. In this work, the aerodynamic features of a pentago...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2016-01-01
|
| Series: | Engineering Applications of Computational Fluid Mechanics |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/19942060.2015.1099569 |
| _version_ | 1819107985193959424 |
|---|---|
| author | Md. Naimul Haque Hiroshi Katsuchi Hitoshi Yamada Mayuko Nishio |
| author_facet | Md. Naimul Haque Hiroshi Katsuchi Hitoshi Yamada Mayuko Nishio |
| author_sort | Md. Naimul Haque |
| collection | DOAJ |
| description | Long-span cable-stayed bridges are susceptible to dynamic wind effects due to their inherent flexibility. The fluid flow around the bridge deck should be well understood for the efficient design of an aerodynamically stable long-span bridge system. In this work, the aerodynamic features of a pentagonal-shaped bridge deck are explored numerically. The analytical results are compared with past experimental work to assess the capability of two-dimensional unsteady RANS simulation for predicting the aerodynamic features of this type of deck. The influence of the bottom plate slope on aerodynamic response and flow features was investigated. By varying the Reynolds number (2 × 104 to 20 × 104) the aerodynamic behavior at high wind speeds is clarified. |
| first_indexed | 2024-12-22T03:02:44Z |
| format | Article |
| id | doaj.art-07285ab8290941b9a16c026d657c1fe4 |
| institution | Directory Open Access Journal |
| issn | 1994-2060 1997-003X |
| language | English |
| last_indexed | 2024-12-22T03:02:44Z |
| publishDate | 2016-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Engineering Applications of Computational Fluid Mechanics |
| spelling | doaj.art-07285ab8290941b9a16c026d657c1fe42022-12-21T18:41:08ZengTaylor & Francis GroupEngineering Applications of Computational Fluid Mechanics1994-20601997-003X2016-01-0110111610.1080/19942060.2015.10995691099569Flow field analysis of a pentagonal-shaped bridge deck by unsteady RANSMd. Naimul Haque0Hiroshi Katsuchi1Hitoshi Yamada2Mayuko Nishio3Yokohama National UniversityYokohama National UniversityYokohama National UniversityYokohama National UniversityLong-span cable-stayed bridges are susceptible to dynamic wind effects due to their inherent flexibility. The fluid flow around the bridge deck should be well understood for the efficient design of an aerodynamically stable long-span bridge system. In this work, the aerodynamic features of a pentagonal-shaped bridge deck are explored numerically. The analytical results are compared with past experimental work to assess the capability of two-dimensional unsteady RANS simulation for predicting the aerodynamic features of this type of deck. The influence of the bottom plate slope on aerodynamic response and flow features was investigated. By varying the Reynolds number (2 × 104 to 20 × 104) the aerodynamic behavior at high wind speeds is clarified.http://dx.doi.org/10.1080/19942060.2015.1099569flow fieldpentagonal bridge deckseparation interference methodaerodynamic behaviorunsteady RANSReynolds number |
| spellingShingle | Md. Naimul Haque Hiroshi Katsuchi Hitoshi Yamada Mayuko Nishio Flow field analysis of a pentagonal-shaped bridge deck by unsteady RANS Engineering Applications of Computational Fluid Mechanics flow field pentagonal bridge deck separation interference method aerodynamic behavior unsteady RANS Reynolds number |
| title | Flow field analysis of a pentagonal-shaped bridge deck by unsteady RANS |
| title_full | Flow field analysis of a pentagonal-shaped bridge deck by unsteady RANS |
| title_fullStr | Flow field analysis of a pentagonal-shaped bridge deck by unsteady RANS |
| title_full_unstemmed | Flow field analysis of a pentagonal-shaped bridge deck by unsteady RANS |
| title_short | Flow field analysis of a pentagonal-shaped bridge deck by unsteady RANS |
| title_sort | flow field analysis of a pentagonal shaped bridge deck by unsteady rans |
| topic | flow field pentagonal bridge deck separation interference method aerodynamic behavior unsteady RANS Reynolds number |
| url | http://dx.doi.org/10.1080/19942060.2015.1099569 |
| work_keys_str_mv | AT mdnaimulhaque flowfieldanalysisofapentagonalshapedbridgedeckbyunsteadyrans AT hiroshikatsuchi flowfieldanalysisofapentagonalshapedbridgedeckbyunsteadyrans AT hitoshiyamada flowfieldanalysisofapentagonalshapedbridgedeckbyunsteadyrans AT mayukonishio flowfieldanalysisofapentagonalshapedbridgedeckbyunsteadyrans |