HEAD VELOCITY AND ENTRAINMENT OF DENSITY CURRENT IN AN EXPANSION REACH

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TORABI POUDEH H.; FATHI MOGHADAM MANOUCHEHR; GHOMESHI M.; SHAFAEI BAJESTAN MAHMOUD

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Paper Information

Journal: IRAN-WATER RESOURCES RESEARCH Year:2007 | Volume:3 | Issue:1 (7) Page(s): 56-67

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Title

HEAD VELOCITY AND ENTRAINMENT OF DENSITY CURRENT IN AN EXPANSION REACH

Author(s)

TORABI POUDEH H. | FATHI MOGHADAM MANOUCHEHR | GHOMESHI M. | SHAFAEI BAJESTAN MAHMOUD | Issue Writer Certificate

Keywords

DENSITY CURRENTQ4

STRATIFIED FLOWQ4

RICHARDSON NUMBERQ4

SEDIMENT TRANSPORTQ3

Abstract

Velocity and Entrainment of DENSITY CURRENT in the expansion reach where a river enters into a dam reservoir, a lake, or open sea is of utmost importance. The present study investigates the head velocity and entrainment of DENSITY CURRENTs in an Expansion Reach. The effects of discharge and bed slope on the head velocity and entrainment of the DENSITY CURRENT were evaluated by a physical and 3D mathematical model. Experiments were conducted in a flume, 6.0 meters long, 0.72 meters wide, and 0.6 meters in height. Head velocity was measured for an expansion degree of 8 in slopes of 0.0009 and 0.0016 for various discharges. Important parameters were normalized and a two dimensional laser Doupler was used to develop the flow body velocity profile. The measurements showed that mixing values were higher in a divergent cross-section compared to a fixed cross-section. During some experiments a hydraulic jump was also detected depending upon the levels of the DENSITY CURRENT and slope of the bed in the divergent cross-section, which was investigated and the results are presented accordingly.

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APA: Copy

TORABI POUDEH, H., FATHI MOGHADAM, MANOUCHEHR, GHOMESHI, M., & SHAFAEI BAJESTAN, MAHMOUD. (2007). HEAD VELOCITY AND ENTRAINMENT OF DENSITY CURRENT IN AN EXPANSION REACH. IRAN-WATER RESOURCES RESEARCH, 3(1 (7)), 56-67. SID. https://sid.ir/paper/100141/en

Vancouver: Copy

TORABI POUDEH H., FATHI MOGHADAM MANOUCHEHR, GHOMESHI M., SHAFAEI BAJESTAN MAHMOUD. HEAD VELOCITY AND ENTRAINMENT OF DENSITY CURRENT IN AN EXPANSION REACH. IRAN-WATER RESOURCES RESEARCH[Internet]. 2007;3(1 (7)):56-67. Available from: https://sid.ir/paper/100141/en

IEEE: Copy

H. TORABI POUDEH, MANOUCHEHR FATHI MOGHADAM, M. GHOMESHI, and MAHMOUD SHAFAEI BAJESTAN, “HEAD VELOCITY AND ENTRAINMENT OF DENSITY CURRENT IN AN EXPANSION REACH,” IRAN-WATER RESOURCES RESEARCH, vol. 3, no. 1 (7), pp. 56–67, 2007, [Online]. Available: https://sid.ir/paper/100141/en

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