AN INVESTIGATION OF THE IMPACT OF MACROALGAL MATS ON SEDIMENTS ACTION PROCESS IN UNIDIRECTIONAL AND WAVE-INDUCED FLOWS

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HEMMATI MOHAMMAD; AHMADI HOJAT

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Journal: Iranian Journal of Soil and Water Research Year:2016 | Volume:47 | Issue:1 Page(s): 43-53

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Title

AN INVESTIGATION OF THE IMPACT OF MACROALGAL MATS ON SEDIMENTS ACTION PROCESS IN UNIDIRECTIONAL AND WAVE-INDUCED FLOWS

Author(s)

HEMMATI MOHAMMAD | AHMADI HOJAT | | Issue Writer Certificate

Keywords

MACROALGAL MATQ1

SEDIMENT PATTERNQ2

WAVE-INDUCED FLOWQ1

UNIDIRECTIONAL FLOWQ1

PSD METHODQ1

Abstract

The impact of MACROALGAL MATs on sedimentation pattern was experimentally. Studied To achieve this object, a series of experiments were conducted in a large flume for different flow conditions and bed covers. The Power Spectral Density (PSD) method was employed to separate wave-induced velocities from turbulence. The results showed that the separation of wave-induced orbital velocity from turbulence is possible through the Power Spectral Density (PSD) method. The sedimentation results revealed that the bed level variations in bare bed were severer than in an algal bed, so that, the range of variations in bare bed was three times that of algal bed, especially in wavy flow conditions. In addition, the average number of ripple crests per meter decreased and the relative ripple wave length increased with an increase in flow discharge. Also the bedload quantity in the presence of algae decreased by 80% in UNIDIRECTIONAL FLOW (current) while by 15% in WAVE-INDUCED FLOW (a combination of wave and current) conditions.

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APA: Copy

HEMMATI, MOHAMMAD, & AHMADI, HOJAT. (2016). AN INVESTIGATION OF THE IMPACT OF MACROALGAL MATS ON SEDIMENTS ACTION PROCESS IN UNIDIRECTIONAL AND WAVE-INDUCED FLOWS. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, 47(1), 43-53. SID. https://sid.ir/paper/225639/en

Vancouver: Copy

HEMMATI MOHAMMAD, AHMADI HOJAT. AN INVESTIGATION OF THE IMPACT OF MACROALGAL MATS ON SEDIMENTS ACTION PROCESS IN UNIDIRECTIONAL AND WAVE-INDUCED FLOWS. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH[Internet]. 2016;47(1):43-53. Available from: https://sid.ir/paper/225639/en

IEEE: Copy

MOHAMMAD HEMMATI, and HOJAT AHMADI, “AN INVESTIGATION OF THE IMPACT OF MACROALGAL MATS ON SEDIMENTS ACTION PROCESS IN UNIDIRECTIONAL AND WAVE-INDUCED FLOWS,” IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, vol. 47, no. 1, pp. 43–53, 2016, [Online]. Available: https://sid.ir/paper/225639/en

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