3D NUMERICAL INVESTIGATION OF THE FLOW PATTERN IN SETTLING BASINS BY SSIIM2 SOFTWARE

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MERUFINIA E.; ASNAASHARI ADEL; HASSANZADEH YOUSEF; KHOSHTINAT SAEID; AHMADI HASAN

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Journal: WATER AND WASTEWATER Year:2016 | Volume:27 | Issue:6 (106) Page(s): 15-23

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Title

3D NUMERICAL INVESTIGATION OF THE FLOW PATTERN IN SETTLING BASINS BY SSIIM2 SOFTWARE

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Keywords

SETTLING BASINSQ2

FLOW SEPARATE ZONESQ2

FLOW HYDRAULICQ2

SSIIM2 MODELQ2

STANDARD KQ2

εQ2

TURBULENCE MODELQ2

Abstract

SETTLING BASINS are considered as a major and important component in conventional water treatment processes. The high cost of constructing these basins accounts for approximately 30% of the total capital investment of water treatment plants. Hence, it is essential to model and optimize their performance beforehand. In settling and sedimentation basins, different areas of flow including secondary and rotational flows occur due to the velocity gradient. Such phenomena cause short paths, increase flow stationary and dead zones, and change the mixing rates of the flow, which collectively prevent laminar conditions to be created for the sedimentation process, and thereby reduce process efficiency. The remedy is to reduce as far as possible the dead zones in the flow. The first step to optimize a settling basin is to calculate accurately the velocity field and the volume of rotation zones. The present study presents the numerical simulation of a flow in a rectangular basin. Continuity and Navier-Stokes equations are solved using finite volume method. A 3D flow simulation is performed using the STANDARD K-ε TURBULENCE MODEL for SETTLING BASINS with and without baffles. Finally, the numerical results obtained are compared with experimental results reported elsewhere.

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APA: Copy

MERUFINIA, E., ASNAASHARI, ADEL, HASSANZADEH, YOUSEF, KHOSHTINAT, SAEID, & AHMADI, HASAN. (2016). 3D NUMERICAL INVESTIGATION OF THE FLOW PATTERN IN SETTLING BASINS BY SSIIM2 SOFTWARE. WATER AND WASTEWATER, 27(6 (106)), 15-23. SID. https://sid.ir/paper/103564/en

Vancouver: Copy

MERUFINIA E., ASNAASHARI ADEL, HASSANZADEH YOUSEF, KHOSHTINAT SAEID, AHMADI HASAN. 3D NUMERICAL INVESTIGATION OF THE FLOW PATTERN IN SETTLING BASINS BY SSIIM2 SOFTWARE. WATER AND WASTEWATER[Internet]. 2016;27(6 (106)):15-23. Available from: https://sid.ir/paper/103564/en

IEEE: Copy

E. MERUFINIA, ADEL ASNAASHARI, YOUSEF HASSANZADEH, SAEID KHOSHTINAT, and HASAN AHMADI, “3D NUMERICAL INVESTIGATION OF THE FLOW PATTERN IN SETTLING BASINS BY SSIIM2 SOFTWARE,” WATER AND WASTEWATER, vol. 27, no. 6 (106), pp. 15–23, 2016, [Online]. Available: https://sid.ir/paper/103564/en

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