Investigation of dam-break flood waves in a dry channel with a hump

Özmen-Çağatay, Hatice; Kocaman, Selahattin; Güzel, Hasan

doi:10.1016/j.jher.2014.01.005

Cited by 72 publications

(35 citation statements)

References 28 publications

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“…Dam break problem was studied in this channel. Then the free surface profile was compared with the experimental data of Ozmen-Cagatay et al [26]. The results of this model was in very good agreement with the experimental data.…”

Section: Discussionsupporting

confidence: 58%

“…The free surface profiles are shown in figure 3 and the results of the present model is compared with experimental data of Ozmen-cagatay et al [26]. Be noted that the space and the level of water are dimensionless and the time is multiplied by …”

Section: Comparison Of Free Surface Profile With Experimental Datamentioning

confidence: 84%

“…In this case, the experimental data of Ozmen-Cagatay et al [26] are used. Dimensions of the channel and reservoir are displayed in figure 1.…”

Section: Numerical Validationsmentioning

confidence: 99%

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Numerical modeling of flood waves in a bumpy channel with the different boundary conditions

et al. 2017

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In this paper, the Incompressible Smoothed Particle Hydrodynamics (ISPH) method is presented to simulate flood waves in uneven beds. The SPH method is a mesh free particle modeling approach that is capable of tracking the large deformation of free surfaces in an easy and accurate manner. Wave breaking is one of the phenomena that its free surface is complicated. Therefore, ISPH method is robust tool for the modeling of this kind of free surface. The basic equations are the incompressible mass conservation and Navier-Stokes equations that are solved using a two-step fractional method. In the first step, these equations are solved to compute velocity components by omitting the pressure term and in the absence of incompressible condition. In the second step, the continuity constraint is satisfied and the Poisson equation is solved to calculate pressure terms. In the present model, a new technique is applied to allocate density of the particles for the calculations. By employing this technique, ISPH method is stabled. The validation by comparison with laboratory data is conducted for bumpy channel with various boundary conditions. The numerical results showed good agreement with available experimental data. Also relative error is calculated for two numerical cases.

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Section: Discussionsupporting

confidence: 58%

Section: Comparison Of Free Surface Profile With Experimental Datamentioning

confidence: 84%

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Numerical modeling of flood waves in a bumpy channel with the different boundary conditions

et al. 2017

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“…Some researchers used a numerical model based on Finite Volume Model (FVM) to investigate the effect of lateral channel contraction on dam-break flow [12][13]. Ozmen-Cagatay et al [14] used numerical models based on SWE and RANS equations to validate their own experimental data of the dam-break flow in a channel with a symmetrical triangularshaped bottom obstacle. Numerical models related to dam-break studies play an important role in understanding hydrodynamics properties of dam-break flow.…”

Section: Introductionmentioning

confidence: 99%

“…In order to overcome extreme deformation feature of fluid, Eulerian formulation was used to define a reference frame in FEM analysis. To determine the performance of the numerical method, numerical data were compared with experimental data [14].…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Dam-Break Flowovera Bottom Obstacle Using Eulerian Finite Element Method

Yılmaz¹,

Dal²,

Demirci³

et al. 2017

IJAERS

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Environmental and economic life cycle assessment of a run‐of‐the‐river type hydroelectricity power plant in Turkey

Bor

Üçtuğ

2021

Env Prog and Sustain Energy

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The environmental and economic life cycle assessment of a real-life run-of-the-river type hydroelectricity power plant in Turkey has been performed by considering the following stages: raw material acquisition, construction (including waste management), and transportation. CCaLC2 software and CML2001 methodology were used to calculate six different environmental impacts, whereas the economic impact was chosen as the levelized cost of electricity (LCOE). Functional unit was 1 MWh of electricity generated. The environmental impacts were found to be on average 95% lower than those of the Turkish grid, and the LCOE was calculated as $58.4/MWh. This outcome is understandable considering the high share of fossil fuels, especially low-quality lignite, in Turkish electricity grid. The results were compared to those of a similar study conducted abroad and all the impacts were found to have the same order of magnitude, proving that this study is methodologically consistent with the literature. The main conclusion is that hydroelectricity produced by run-of-the-river type plants in Turkey is environmentally friendly and economically viable compared to grid electricity. This is the first study in Turkey on the life cycle impact analysis of hydroelectricity and one of the few studies that consider economic and environmental factors simultaneously.environmental impact analysis, hydroelectricity power plant, levelized cost of electricity, life cycle assessment, run-of-the-river

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Investigation of dam-break flood waves in a dry channel with a hump

Cited by 72 publications

References 28 publications

Numerical modeling of flood waves in a bumpy channel with the different boundary conditions

Numerical modeling of flood waves in a bumpy channel with the different boundary conditions

Numerical Investigation of Dam-Break Flowovera Bottom Obstacle Using Eulerian Finite Element Method

Environmental and economic life cycle assessment of a run‐of‐the‐river type hydroelectricity power plant in Turkey

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