NUMERICAL MODELING OF SECONDARY CURRENT CELLS IN TRAPEZOIDAL CHANNELS WITH UNIFORM ROUGHNESS

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TAJNESAIE M.; AZHDARY MOGHADAM M.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Modeling in Engineering Year:2010 | Volume:8 | Issue:20 Page(s): 57-70

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Information Journal Paper

Title

NUMERICAL MODELING OF SECONDARY CURRENT CELLS IN TRAPEZOIDAL CHANNELS WITH UNIFORM ROUGHNESS

Author(s)

TAJNESAIE M. | AZHDARY MOGHADAM M. | Issue Writer Certificate

Keywords

SECONDARY CURRENT CELLSQ3

COMPUTATIONAL FLUID DYNAMICSQ1

ANSYS CFX SOFTWAREQ3

UNIFORM ROUGHNESSQ3

DEPTH AVERAGED VELOCITY DISTRIBUTIONQ3

BOUNDARY SHEAR STRESS DISTRIBUTIONQ3

Abstract

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 withroughed 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.

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APA: Copy

TAJNESAIE, M., & AZHDARY MOGHADAM, M.. (2010). NUMERICAL MODELING OF SECONDARY CURRENT CELLS IN TRAPEZOIDAL CHANNELS WITH UNIFORM ROUGHNESS. JOURNAL OF MODELING IN ENGINEERING, 8(20), 57-70. SID. https://sid.ir/paper/173776/en

Vancouver: Copy

TAJNESAIE M., AZHDARY MOGHADAM M.. NUMERICAL MODELING OF SECONDARY CURRENT CELLS IN TRAPEZOIDAL CHANNELS WITH UNIFORM ROUGHNESS. JOURNAL OF MODELING IN ENGINEERING[Internet]. 2010;8(20):57-70. Available from: https://sid.ir/paper/173776/en

IEEE: Copy

M. TAJNESAIE, and M. AZHDARY MOGHADAM, “NUMERICAL MODELING OF SECONDARY CURRENT CELLS IN TRAPEZOIDAL CHANNELS WITH UNIFORM ROUGHNESS,” JOURNAL OF MODELING IN ENGINEERING, vol. 8, no. 20, pp. 57–70, 2010, [Online]. Available: https://sid.ir/paper/173776/en

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