Water Tunnel Turbulence Intensity Investigation For Micro-Hydrokinetic Turbine Application
Water tunnel is used to investigate the hydrodynamic behavior of immersed body in fluid dynamics study. Water tunnel is essential to provide a controlled condition for fluid flow research. The operational principle of water tunnel is identical to the wind tunnel but with different working fluid and...
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| Format: | Monograph |
| Language: | English |
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Universiti Sains Malaysia
2019
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| Online Access: | http://eprints.usm.my/58707/ http://eprints.usm.my/58707/1/Water%20Tunnel%20Turbulence%20Intensity%20Investigation%20For%20Micro-Hydrokinetic%20Turbine%20Application.pdf |
| _version_ | 1848883971277979648 |
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| author | Subramaniam, Viknaraj |
| author_facet | Subramaniam, Viknaraj |
| author_sort | Subramaniam, Viknaraj |
| building | USM Institutional Repository |
| collection | Online Access |
| description | Water tunnel is used to investigate the hydrodynamic behavior of immersed body in fluid dynamics study. Water tunnel is essential to provide a controlled condition for fluid flow research. The operational principle of water tunnel is identical to the wind tunnel but with different working fluid and higher flow-pumping capacity. Tests such as flow visualization in wind tunnel is more difficult to be conducted as turbulent flows in wind dissipate quickly whilst water tunnel is more suitable for such purpose due to higher fluid viscosity. However, the turbulence in the test section must be less than 10% or lower in order to produce a valid result. The present work focuses on improving the design criteria for each components and to maximize the performance of the water tunnel that was developed previously in terms of turbulence intensity reduction and improvement in flow uniformity. The design criteria of several primary components are studied and altered to reduce the turbulence intensity. The modified components were designed, fabricated and assembled to complete the modified water tunnel. This study also includes quantitative analysis on the velocity profiles and uniformity of the water flow at the test section. This is done by collecting data of the velocity at every point in the cross-section of water flow. That result was then used to plot the uniformity graph and to calculate the turbulence intensity in the water tunnel test section. The final turbulence intensity in the test section with the modifications made yielded a minimum result of 6.77%. The previous design yielded a turbulence intensity percentage of 9.66% comparatively. Thus, the turbulence intensity in the water tunnel was reduced by 29.92 %. |
| first_indexed | 2025-11-15T18:59:17Z |
| format | Monograph |
| id | usm-58707 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T18:59:17Z |
| publishDate | 2019 |
| publisher | Universiti Sains Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-587072023-05-26T02:48:21Z http://eprints.usm.my/58707/ Water Tunnel Turbulence Intensity Investigation For Micro-Hydrokinetic Turbine Application Subramaniam, Viknaraj T Technology Water tunnel is used to investigate the hydrodynamic behavior of immersed body in fluid dynamics study. Water tunnel is essential to provide a controlled condition for fluid flow research. The operational principle of water tunnel is identical to the wind tunnel but with different working fluid and higher flow-pumping capacity. Tests such as flow visualization in wind tunnel is more difficult to be conducted as turbulent flows in wind dissipate quickly whilst water tunnel is more suitable for such purpose due to higher fluid viscosity. However, the turbulence in the test section must be less than 10% or lower in order to produce a valid result. The present work focuses on improving the design criteria for each components and to maximize the performance of the water tunnel that was developed previously in terms of turbulence intensity reduction and improvement in flow uniformity. The design criteria of several primary components are studied and altered to reduce the turbulence intensity. The modified components were designed, fabricated and assembled to complete the modified water tunnel. This study also includes quantitative analysis on the velocity profiles and uniformity of the water flow at the test section. This is done by collecting data of the velocity at every point in the cross-section of water flow. That result was then used to plot the uniformity graph and to calculate the turbulence intensity in the water tunnel test section. The final turbulence intensity in the test section with the modifications made yielded a minimum result of 6.77%. The previous design yielded a turbulence intensity percentage of 9.66% comparatively. Thus, the turbulence intensity in the water tunnel was reduced by 29.92 %. Universiti Sains Malaysia 2019-06-01 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/58707/1/Water%20Tunnel%20Turbulence%20Intensity%20Investigation%20For%20Micro-Hydrokinetic%20Turbine%20Application.pdf Subramaniam, Viknaraj (2019) Water Tunnel Turbulence Intensity Investigation For Micro-Hydrokinetic Turbine Application. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Aeroangkasa. (Submitted) |
| spellingShingle | T Technology Subramaniam, Viknaraj Water Tunnel Turbulence Intensity Investigation For Micro-Hydrokinetic Turbine Application |
| title | Water Tunnel Turbulence Intensity Investigation For Micro-Hydrokinetic Turbine Application |
| title_full | Water Tunnel Turbulence Intensity Investigation For Micro-Hydrokinetic Turbine Application |
| title_fullStr | Water Tunnel Turbulence Intensity Investigation For Micro-Hydrokinetic Turbine Application |
| title_full_unstemmed | Water Tunnel Turbulence Intensity Investigation For Micro-Hydrokinetic Turbine Application |
| title_short | Water Tunnel Turbulence Intensity Investigation For Micro-Hydrokinetic Turbine Application |
| title_sort | water tunnel turbulence intensity investigation for micro-hydrokinetic turbine application |
| topic | T Technology |
| url | http://eprints.usm.my/58707/ http://eprints.usm.my/58707/1/Water%20Tunnel%20Turbulence%20Intensity%20Investigation%20For%20Micro-Hydrokinetic%20Turbine%20Application.pdf |