Effects of Vegetation Stem Diameter on Gravity Current in Laboratory Condition

Hosseini, Ali (2014) Effects of Vegetation Stem Diameter on Gravity Current in Laboratory Condition. Masters thesis, University of Zabol.

Effects of vegetation stem diameter on gravity current in laboratory condition.pdf

Download (131kB) | Preview


Reservoir sedimentation amount is large and the related expenses are also high. Vegetations can affect the flow conditions. So, the effects of different rod diameters rolling as the vegetative agents on the flow conditions have been investigated in this laboratory research. The laboratory test was set up by three different slope conditions, namely 0, 1and 2 percents, in presence of two flow concentration conditions (40and 80 gr/lit) and five different vegetative (rod diameter) conditions, namely 0.2, 0.61, 0.85, 1.1, and 1.9 cm. The dimensional analysis revealed the affecting parameters' contributions, which were determined to be the frontal velocity and flow height. The flow velocity was decreased by 9.55, 14.65, 18.5, 28.58 and 33.76 percents, accordingly, while the related Froude numbers were decreased with a mean of 20 percent and so the frontal flow velocity was increased and its height was decreased. The average Coefficient of contraction was found to be 0.754 and 0.58 for un-vegetated and vegetated environments, respectively

Item Type: Thesis (Masters)
Uncontrolled Keywords: Density Current, Rod Diameter, Velocity variations, Lab setup Model
Subjects: S Agriculture > SB Plant culture
T Technology > TA Engineering (General). Civil engineering (General)
Depositing User: admin admin1 admin2
Date Deposited: 05 Apr 2016 09:00
Last Modified: 05 Apr 2016 09:00
URI: http://eprints.uoz.ac.ir/id/eprint/252

Actions (login required)

View Item View Item