Velocity and turbulence affected by various vegetations in open channel
Water energy is a conventional source of source that is widely available in nature. It can be easily converted into high quality secondary energy-electric energy through hydroelectric power stations. Hydropower is not only a widely used conventional energy source, but also a renewable energy source....
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2021-01-01
|
| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/24/e3sconf_caes2021_03078.pdf |
| _version_ | 1818579878055772160 |
|---|---|
| author | Sun Zhilin Meng Xin Zhou Yubao |
| author_facet | Sun Zhilin Meng Xin Zhou Yubao |
| author_sort | Sun Zhilin |
| collection | DOAJ |
| description | Water energy is a conventional source of source that is widely available in nature. It can be easily converted into high quality secondary energy-electric energy through hydroelectric power stations. Hydropower is not only a widely used conventional energy source, but also a renewable energy source. Moreover, hydroelectric power has no pollution to the environment. Therefore, water energy is an inexhaustible and high-quality energy source among many energy sources in the world. However, vegetation can change flow structure and turbulence characteristics, impacting the use of water energy. In previous researches, few studies have focused on the comparison of velocity and turbulence influenced by various vegetations. Therefore, laboratory experiments were carried out to investigate hydrodynamics affected by submerged rigid vegetation (reed and wooden stick) and merged flexible vegetation (grass and chlorella) under different conditions. The time-averaged velocity distributions of planted floodplain are not logarithmic. Instead, reed and wooden stick followed an “S-shape” profile, but for grass and chlorella, they presented reverse S-shape profile. For all cases, turbulence is not isotropic and the change law of turbulence intensity is different in different sections. |
| first_indexed | 2024-12-16T07:08:42Z |
| format | Article |
| id | doaj.art-24ba596faa344ca7bf46e2ea52c674e5 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-16T07:08:42Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-24ba596faa344ca7bf46e2ea52c674e52022-12-21T22:39:57ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012480307810.1051/e3sconf/202124803078e3sconf_caes2021_03078Velocity and turbulence affected by various vegetations in open channelSun Zhilin0Meng Xin1Zhou Yubao2Ocean College, Zhejiang UniversityOcean College, Zhejiang UniversityFaculty of Civil Engineering and Geosciences, Delft University of TechnologyWater energy is a conventional source of source that is widely available in nature. It can be easily converted into high quality secondary energy-electric energy through hydroelectric power stations. Hydropower is not only a widely used conventional energy source, but also a renewable energy source. Moreover, hydroelectric power has no pollution to the environment. Therefore, water energy is an inexhaustible and high-quality energy source among many energy sources in the world. However, vegetation can change flow structure and turbulence characteristics, impacting the use of water energy. In previous researches, few studies have focused on the comparison of velocity and turbulence influenced by various vegetations. Therefore, laboratory experiments were carried out to investigate hydrodynamics affected by submerged rigid vegetation (reed and wooden stick) and merged flexible vegetation (grass and chlorella) under different conditions. The time-averaged velocity distributions of planted floodplain are not logarithmic. Instead, reed and wooden stick followed an “S-shape” profile, but for grass and chlorella, they presented reverse S-shape profile. For all cases, turbulence is not isotropic and the change law of turbulence intensity is different in different sections.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/24/e3sconf_caes2021_03078.pdf |
| spellingShingle | Sun Zhilin Meng Xin Zhou Yubao Velocity and turbulence affected by various vegetations in open channel E3S Web of Conferences |
| title | Velocity and turbulence affected by various vegetations in open channel |
| title_full | Velocity and turbulence affected by various vegetations in open channel |
| title_fullStr | Velocity and turbulence affected by various vegetations in open channel |
| title_full_unstemmed | Velocity and turbulence affected by various vegetations in open channel |
| title_short | Velocity and turbulence affected by various vegetations in open channel |
| title_sort | velocity and turbulence affected by various vegetations in open channel |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/24/e3sconf_caes2021_03078.pdf |
| work_keys_str_mv | AT sunzhilin velocityandturbulenceaffectedbyvariousvegetationsinopenchannel AT mengxin velocityandturbulenceaffectedbyvariousvegetationsinopenchannel AT zhouyubao velocityandturbulenceaffectedbyvariousvegetationsinopenchannel |