Safa Subhi Ibrahim

Safa Subhi Ibrahim
University of Zakho | UoZ · Petroleum Engineering Department

2.38
 · 
Master
Research
Research items (5)
Article
Full-text available
Sills under sluice gates is used in hydraulic structures; their effect on the head generated upstream gates for certain rate of flow is related to the height and length of sill. A study is held in laboratory flume on four different prismatic sill heights and one model without sill by changing the gate opening four times for each model. Statistical...
Conference Paper
The aim of the present investigation is to study the effects of side slope, bed slope and bed roughness on the flow over free overfalls in trapezoidal channels. Three models of trapezoidal free overfall channels have been built and tested in a laboratory flume; each model had four different bed slopes. For each slope, the bed was roughened using ar...
Article
The aim of the present investigation is to study the effect of both side and bed slopes on the flow over free overfalls in trapezoidal channels, three models of trapezoidal free overfall channels have been built and tested in a laboratory flume. These models had 0.1m bed width and 3.7m length with different values of side slope (m = 0.268, 0.577, a...
Article
Full-text available
The aim of this research is to investigate the effect of surface roughness on the performance of weir and gate. An experimental study in a laboratory flume is carried out to study flow over and under cylindrical weir gate in combined structure as flow measurement device. Four models having different diameters were tested in a laboratory flume. In e...
Article
Full-text available
The aim of this study is to investigate the effects of surface roughness sizes on the discharge coefficient for a broad crested weirs. For this purpose, three models having different lengths of broad crested weirs were tested in a horizontal flume. In each model, the surface was roughed four times. Experimental results of all models showed that the...