NUMERICAL MODELING OF SECONDARY CURRENT CELLS IN TRAPEZOIDAL CHANNELS WITH UNIFORM ROUGHNESS
Trapezoidal open channels are among the most common and optimized sections that used in water conveyance system. Thus investigation of flow conditions in them is very essential. One of the most important related subjects is lateral velocity component that produced cells in secondary flow. Several p...
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| Format: | Article |
| Language: | fas |
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Semnan University
2010-03-01
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| Series: | مجله مدل سازی در مهندسی |
| Subjects: | |
| Online Access: | https://modelling.semnan.ac.ir/article_1553_7df42fd77e4d40b2dcb9900541917f9c.pdf |
| _version_ | 1797296682576117760 |
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| author | مهدی Azhdary Moghadam مهنا Tajnesaie مهنا Tajnesaie |
| author_facet | مهدی Azhdary Moghadam مهنا Tajnesaie مهنا Tajnesaie |
| author_sort | مهدی Azhdary Moghadam |
| collection | DOAJ |
| description | Trapezoidal open channels are among the most common and optimized sections that used in water conveyance system. Thus investigation of flow conditions in them is very essential. One of the most important related subjects is lateral velocity component that produced cells in secondary flow. Several parameters such as channel roughness can intervene on how cells were formed. In the present study applying CFD methods using ANSYS CFX package flow condition in trapezoidal open channels with roughed boundary were simulated and variation of cells in secondary flow and distribution of hydraulic parameters such as mean depth velocity and boundary shear stress under uniform increase of boundary roughness were investigated. The results showed changes in sizes as well as the cells location due to uniform roughness increase. Also this increase was caused decrease in mean depth velocity and increase in boundary shear stress. |
| first_indexed | 2024-03-07T22:08:18Z |
| format | Article |
| id | doaj.art-902461adcc0d4e4988ae83a3f068191d |
| institution | Directory Open Access Journal |
| issn | 2008-4854 2783-2538 |
| language | fas |
| last_indexed | 2024-03-07T22:08:18Z |
| publishDate | 2010-03-01 |
| publisher | Semnan University |
| record_format | Article |
| series | مجله مدل سازی در مهندسی |
| spelling | doaj.art-902461adcc0d4e4988ae83a3f068191d2024-02-23T18:54:21ZfasSemnan Universityمجله مدل سازی در مهندسی2008-48542783-25382010-03-01820577010.22075/jme.2017.15531553NUMERICAL MODELING OF SECONDARY CURRENT CELLS IN TRAPEZOIDAL CHANNELS WITH UNIFORM ROUGHNESSمهدی Azhdary Moghadamمهنا Tajnesaieمهنا TajnesaieTrapezoidal open channels are among the most common and optimized sections that used in water conveyance system. Thus investigation of flow conditions in them is very essential. One of the most important related subjects is lateral velocity component that produced cells in secondary flow. Several parameters such as channel roughness can intervene on how cells were formed. In the present study applying CFD methods using ANSYS CFX package flow condition in trapezoidal open channels with roughed boundary were simulated and variation of cells in secondary flow and distribution of hydraulic parameters such as mean depth velocity and boundary shear stress under uniform increase of boundary roughness were investigated. The results showed changes in sizes as well as the cells location due to uniform roughness increase. Also this increase was caused decrease in mean depth velocity and increase in boundary shear stress.https://modelling.semnan.ac.ir/article_1553_7df42fd77e4d40b2dcb9900541917f9c.pdfsecondary current cellscomputational fluid dynamicsansys cfx softwareuniform roughnessdepth averaged velocity distributionboundary shear stress distribution |
| spellingShingle | مهدی Azhdary Moghadam مهنا Tajnesaie مهنا Tajnesaie NUMERICAL MODELING OF SECONDARY CURRENT CELLS IN TRAPEZOIDAL CHANNELS WITH UNIFORM ROUGHNESS مجله مدل سازی در مهندسی secondary current cells computational fluid dynamics ansys cfx software uniform roughness depth averaged velocity distribution boundary shear stress distribution |
| title | NUMERICAL MODELING OF SECONDARY CURRENT CELLS IN TRAPEZOIDAL CHANNELS WITH UNIFORM ROUGHNESS |
| title_full | NUMERICAL MODELING OF SECONDARY CURRENT CELLS IN TRAPEZOIDAL CHANNELS WITH UNIFORM ROUGHNESS |
| title_fullStr | NUMERICAL MODELING OF SECONDARY CURRENT CELLS IN TRAPEZOIDAL CHANNELS WITH UNIFORM ROUGHNESS |
| title_full_unstemmed | NUMERICAL MODELING OF SECONDARY CURRENT CELLS IN TRAPEZOIDAL CHANNELS WITH UNIFORM ROUGHNESS |
| title_short | NUMERICAL MODELING OF SECONDARY CURRENT CELLS IN TRAPEZOIDAL CHANNELS WITH UNIFORM ROUGHNESS |
| title_sort | numerical modeling of secondary current cells in trapezoidal channels with uniform roughness |
| topic | secondary current cells computational fluid dynamics ansys cfx software uniform roughness depth averaged velocity distribution boundary shear stress distribution |
| url | https://modelling.semnan.ac.ir/article_1553_7df42fd77e4d40b2dcb9900541917f9c.pdf |
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