EXPERIMENTAL INVESTIGATION OF THE EFFECTIVE PARAMETERS ON SEDIMENT TRANSPORT UNDER FLASH FLOOD

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ESMAEILI K.; SHAFAEI BAJESTAN MAHMOUD; KASHEFIPOUR SEYED MAHMOUD

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Journal: IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING Year:2007 | Volume:1 | Issue:2 Page(s): 3-10

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Title

EXPERIMENTAL INVESTIGATION OF THE EFFECTIVE PARAMETERS ON SEDIMENT TRANSPORT UNDER FLASH FLOOD

Author(s)

ESMAEILI K. | SHAFAEI BAJESTAN MAHMOUD | KASHEFIPOUR SEYED MAHMOUD | Issue Writer Certificate

Keywords

EPHEMERAL STREAMQ3

UNSTEADY FLOWQ3

SEDIMENT TRANSPORTQ3

FLASH FLOODQ2

Abstract

In this study, the main aim was to investigate the SEDIMENT TRANSPORT mechanism in ephemeral rivers due to FLASH FLOOD using an experimental research work undertaken in a tilted laboratory flume. Since during a FLASH FLOOD phenomenon, flow is generally in unsteady conditions, a reservoir tank was installed at the upstream of the flume to produce various forms of hydrographs of UNSTEADY FLOWs with different magnitudes of discharges and base times. Fine and uniform sand with of 1,5 mm was used as the mobile bed simulation. For the same maximum discharge (hydrograph peak), the results show that SEDIMENT TRANSPORT was increased for the shorter of hydrograph base time. The amount of sediment load for the unsteady conditions was more than the corresponding value for uniform flow with this being due to the effect of dynamic wave and its amount is as a function of wave conditions. For hydrographs with longer base time, the amounts of sediment load were found to be close to the values obtained for the uniform conditions. The gradient of increasing discharge in hydrographs was found to be the predominant parameter in SEDIMENT TRANSPORT load. Bed deformation from the primary wave was significant and as a result bed resistance was notably increased.

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APA: Copy

ESMAEILI, K., SHAFAEI BAJESTAN, MAHMOUD, & KASHEFIPOUR, SEYED MAHMOUD. (2007). EXPERIMENTAL INVESTIGATION OF THE EFFECTIVE PARAMETERS ON SEDIMENT TRANSPORT UNDER FLASH FLOOD. IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING, 1(2), 3-10. SID. https://sid.ir/paper/134695/en

Vancouver: Copy

ESMAEILI K., SHAFAEI BAJESTAN MAHMOUD, KASHEFIPOUR SEYED MAHMOUD. EXPERIMENTAL INVESTIGATION OF THE EFFECTIVE PARAMETERS ON SEDIMENT TRANSPORT UNDER FLASH FLOOD. IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING[Internet]. 2007;1(2):3-10. Available from: https://sid.ir/paper/134695/en

IEEE: Copy

K. ESMAEILI, MAHMOUD SHAFAEI BAJESTAN, and SEYED MAHMOUD KASHEFIPOUR, “EXPERIMENTAL INVESTIGATION OF THE EFFECTIVE PARAMETERS ON SEDIMENT TRANSPORT UNDER FLASH FLOOD,” IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING, vol. 1, no. 2, pp. 3–10, 2007, [Online]. Available: https://sid.ir/paper/134695/en

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