MODELING OF PATTERN AND DISSIPATING ENERGY IN THE GABION STEPEDSPILLWAY USING FLOW-3D

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ALASVAND K.; AHADIAN J.; FATHIAN H.

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Journal: JOURNAL OF WATER SCIENCES AND ENGINEERING Year:2012 | Volume:1 | Issue:3 Page(s): 89-97

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Title

MODELING OF PATTERN AND DISSIPATING ENERGY IN THE GABION STEPEDSPILLWAY USING FLOW-3D

Author(s)

ALASVAND K. | AHADIAN J. | FATHIAN H. | Issue Writer Certificate

Keywords

DEPRECIATION ENERGYQ1

STEPPED SPILLWAY GABYVNYQ2

VORTEX FLOWQ2

FLOW-3D SOFTWAREQ2

Abstract

Characteristics and behavior of the flow in hydraulic structures, a complex phenomenon that is imperative to use software that will beto be study. Gabiony stepped spillway is a simple hydraulic structures to control erosion downstream of dams, and, depreciation of structures is used. Rough stairway consisting of overflow from the stairs near the crest of the weir is started and continues to have a lower heel. Research shows that the rate of depreciation of energy in Spillways stairs of the flat (no stairs) has the same size. In this study, the ratio of width to length roughness (b / h) was equal to 0.25, 0.5, 1, and three-positions height roughness and three-state roughness height to flow 220, 4 (lit/s). In the nine-step model with a height of stair 0.1 m and 21-degree slope was investigated and the roughness effect on the distribution of power and the creation of the vortex on the stairs of a STEPPED SPILLWAY GABYVNY was down by FLOW-3D SOFTWARE. This research showed rough results in the flow range 0.004, 0.009, 0.01 (m^3/s) by the nappe regime to collapse and from flow 0.016 meters per second to the higher flow is a skmming flow regime. Most energy-related depreciation in the flow 0.016 with 79.5 Percent Energy depreciate and Depreciation less energy to flow 0.22 (m^3/s) with 20.4 Percent of energy is depreciate.

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APA: Copy

ALASVAND, K., AHADIAN, J., & FATHIAN, H.. (2012). MODELING OF PATTERN AND DISSIPATING ENERGY IN THE GABION STEPEDSPILLWAY USING FLOW-3D. JOURNAL OF WATER SCIENCES AND ENGINEERING, 1(3), 89-97. SID. https://sid.ir/paper/235537/en

Vancouver: Copy

ALASVAND K., AHADIAN J., FATHIAN H.. MODELING OF PATTERN AND DISSIPATING ENERGY IN THE GABION STEPEDSPILLWAY USING FLOW-3D. JOURNAL OF WATER SCIENCES AND ENGINEERING[Internet]. 2012;1(3):89-97. Available from: https://sid.ir/paper/235537/en

IEEE: Copy

K. ALASVAND, J. AHADIAN, and H. FATHIAN, “MODELING OF PATTERN AND DISSIPATING ENERGY IN THE GABION STEPEDSPILLWAY USING FLOW-3D,” JOURNAL OF WATER SCIENCES AND ENGINEERING, vol. 1, no. 3, pp. 89–97, 2012, [Online]. Available: https://sid.ir/paper/235537/en

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