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Density currents dynamics over rough beds

Nasrollahpour, Reza and Jamal, Mohamad Hidayat and Ghomesi, Mehdi and Ismail, Zulhilmi and Roushenas, Peiman (2015) Density currents dynamics over rough beds. In: Applied Mechanics and Materials, 25 Feb, 2015, Kuala Lumpur, Malaysia.

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Official URL: https://www.scientific.net/AMM.735.159

Abstract

Density currents are flows driven by density differences caused by suspended fine solid material, dissolved contents, temperature gradient or a combination of them. Reservoir sedimentation is often related to sediment transport by density currents. This sedimentation can block bottom outlets, reduce the capacity of reservoir and harms the dam power plants. The head is the leading edge of density currents. In this paper, the influences of artificially roughened beds on dynamics of the frontal region of density currents are investigated experimentally. Three rough beds using conic roughness elements and a smooth bed were tested. The observed trend is that as the surface roughness increases the head concentration and velocity decreases.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:density current, reservoir sedimentation
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:67158
Deposited By: Fazli Masari
Deposited On:15 Jun 2017 07:18
Last Modified:06 Jul 2017 01:09

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