Experimental studies on the flow characteristics in an inclined bend-free OWC device
A bend-free rectangular cross-section OWC device was designed and constructed for studying the effect of inclination on the flow characteristics inside the device. The inclination is meant to reduce reflection of waves and induce higher velocities in the turbine section. Experimental measurements we...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2016-01-01
|
| Series: | Journal of Ocean Engineering and Science |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468013315000042 |
| _version_ | 1828297519698804736 |
|---|---|
| author | Krishnil Ravinesh Ram Mohammed Rafiuddin Ahmed Mohammed Asid Zullah Young-Ho Lee |
| author_facet | Krishnil Ravinesh Ram Mohammed Rafiuddin Ahmed Mohammed Asid Zullah Young-Ho Lee |
| author_sort | Krishnil Ravinesh Ram |
| collection | DOAJ |
| description | A bend-free rectangular cross-section OWC device was designed and constructed for studying the effect of inclination on the flow characteristics inside the device. The inclination is meant to reduce reflection of waves and induce higher velocities in the turbine section. Experimental measurements were made in a wave channel where the OWC device was tested. An S-type Pitot tube was used to measure dynamic pressure of air in the turbine section at several inclinations. Particle Image Velocimetry (PIV) was also done to study the flow of both air and water in the OWC device. In order to focus solely on primary energy capture, no turbine was installed in the OWC device. The dynamic pressure readings were analysed for suction and compression stages. Water volume fluctuations inside the capture chamber were also recorded and compared for different inclinations. The result was an increase in the velocity of air flowing in the capture chamber and hence a rise in the kinetic energy available to the turbine. It was found from experimental studies that as the angle of inclination reduced, the velocity of air in the turbine section increased. The lower angles also caused higher run-up and larger volume of water into the capture chamber. |
| first_indexed | 2024-04-13T12:27:04Z |
| format | Article |
| id | doaj.art-82e2afe58ed240c7ba7ecd7262b96111 |
| institution | Directory Open Access Journal |
| issn | 2468-0133 |
| language | English |
| last_indexed | 2024-04-13T12:27:04Z |
| publishDate | 2016-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Ocean Engineering and Science |
| spelling | doaj.art-82e2afe58ed240c7ba7ecd7262b961112022-12-22T02:46:59ZengElsevierJournal of Ocean Engineering and Science2468-01332016-01-0111778310.1016/j.joes.2015.12.003Experimental studies on the flow characteristics in an inclined bend-free OWC deviceKrishnil Ravinesh Ram0Mohammed Rafiuddin Ahmed1Mohammed Asid Zullah2Young-Ho Lee3Division of Mechanical Engineering, The University of the South Pacific, Suva, FijiDivision of Mechanical Engineering, The University of the South Pacific, Suva, FijiDivision of Mechanical and Energy System Engineering, Korean Maritime and Ocean University, Busan, Republic of KoreaDivision of Mechanical and Energy System Engineering, Korean Maritime and Ocean University, Busan, Republic of KoreaA bend-free rectangular cross-section OWC device was designed and constructed for studying the effect of inclination on the flow characteristics inside the device. The inclination is meant to reduce reflection of waves and induce higher velocities in the turbine section. Experimental measurements were made in a wave channel where the OWC device was tested. An S-type Pitot tube was used to measure dynamic pressure of air in the turbine section at several inclinations. Particle Image Velocimetry (PIV) was also done to study the flow of both air and water in the OWC device. In order to focus solely on primary energy capture, no turbine was installed in the OWC device. The dynamic pressure readings were analysed for suction and compression stages. Water volume fluctuations inside the capture chamber were also recorded and compared for different inclinations. The result was an increase in the velocity of air flowing in the capture chamber and hence a rise in the kinetic energy available to the turbine. It was found from experimental studies that as the angle of inclination reduced, the velocity of air in the turbine section increased. The lower angles also caused higher run-up and larger volume of water into the capture chamber.http://www.sciencedirect.com/science/article/pii/S2468013315000042Oscillating water columnParticle Image VelocimetryWave energy |
| spellingShingle | Krishnil Ravinesh Ram Mohammed Rafiuddin Ahmed Mohammed Asid Zullah Young-Ho Lee Experimental studies on the flow characteristics in an inclined bend-free OWC device Journal of Ocean Engineering and Science Oscillating water column Particle Image Velocimetry Wave energy |
| title | Experimental studies on the flow characteristics in an inclined bend-free OWC device |
| title_full | Experimental studies on the flow characteristics in an inclined bend-free OWC device |
| title_fullStr | Experimental studies on the flow characteristics in an inclined bend-free OWC device |
| title_full_unstemmed | Experimental studies on the flow characteristics in an inclined bend-free OWC device |
| title_short | Experimental studies on the flow characteristics in an inclined bend-free OWC device |
| title_sort | experimental studies on the flow characteristics in an inclined bend free owc device |
| topic | Oscillating water column Particle Image Velocimetry Wave energy |
| url | http://www.sciencedirect.com/science/article/pii/S2468013315000042 |
| work_keys_str_mv | AT krishnilravineshram experimentalstudiesontheflowcharacteristicsinaninclinedbendfreeowcdevice AT mohammedrafiuddinahmed experimentalstudiesontheflowcharacteristicsinaninclinedbendfreeowcdevice AT mohammedasidzullah experimentalstudiesontheflowcharacteristicsinaninclinedbendfreeowcdevice AT youngholee experimentalstudiesontheflowcharacteristicsinaninclinedbendfreeowcdevice |