Güney, Mehmet Şükrü
Loading...
Profile URL
Name Variants
Guney, M. Sukru
Guney, Mehmet Sukru
Guney, M. S.
Guney, Mehmet Sukru
Guney, M. S.
Job Title
Email Address
sukru.guney@ieu.edu.tr
Main Affiliation
05.03. Civil Engineering
Status
Current Staff
Website
ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
Sustainable Development Goals
1NO POVERTY
0
Research Products
2ZERO HUNGER
0
Research Products
3GOOD HEALTH AND WELL-BEING
0
Research Products
4QUALITY EDUCATION
0
Research Products
5GENDER EQUALITY
0
Research Products
6CLEAN WATER AND SANITATION
0
Research Products
7AFFORDABLE AND CLEAN ENERGY
0
Research Products
8DECENT WORK AND ECONOMIC GROWTH
0
Research Products
9INDUSTRY, INNOVATION AND INFRASTRUCTURE
0
Research Products
10REDUCED INEQUALITIES
0
Research Products
11SUSTAINABLE CITIES AND COMMUNITIES
1
Research Products
12RESPONSIBLE CONSUMPTION AND PRODUCTION
0
Research Products
13CLIMATE ACTION
0
Research Products
14LIFE BELOW WATER
0
Research Products
15LIFE ON LAND
0
Research Products
16PEACE, JUSTICE AND STRONG INSTITUTIONS
0
Research Products
17PARTNERSHIPS FOR THE GOALS
0
Research Products
Documents
26
Citations
346
h-index
9
Documents
0
Citations
0
Scholarly Output
16
Articles
13
Views / Downloads
77/212
Supervised MSc Theses
0
Supervised PhD Theses
0
WoS Citation Count
44
Scopus Citation Count
47
Patents
0
Projects
1
WoS Citations per Publication
2.75
Scopus Citations per Publication
2.94
Open Access Source
10
Supervised Theses
0
| Journal | Count |
|---|---|
| Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi | 2 |
| Turkish Journal of Civil Engineering | 2 |
| Bulletin of Engineering Geology and the Environment | 1 |
| Cıvıl Engıneerıng Journal-Tehran | 1 |
| Dicle Üniversitesi Mühendislik Fakültesi Mühendislik Dergisi | 1 |
Current Page: 1 / 3
Scopus Quartile Distribution
Competency Cloud
16 results
Scholarly Output Search Results
Now showing 1 - 10 of 16
Article Citation - WoS: 3Citation - Scopus: 4Experimental and Numerical Investigation of Local Scour Around Square Bridge Pier(Taylors Univ Sdn Bhd, 2022) Bor Türkben, Aslı; Güney, Mehmet Şükrü; Bor, AsliThis study examines, local scour around square pier under unsteady flow conditions, caused by five different hydrographs. The experiments were conducted in the rectangular flume of 18.6 m length, 0.80 m width and 0.75 m depth, with uniform sediment bed material D-50 = 1.68 mm. Five experiment series were conducted with a plexiglass square pier b = 8.5 cm. The unsteady flow was generated by means of triangular hydrographs. The temporal variations of the equilibrium scour depths in front of the pier and the scour hole dimensions were recorded by two different cameras. The equilibrium scour depths at lateral sides and downstream of the pier were also measured. The hydrograph peak flow rates were found to be much more effective compared to hydrograph durations. The numerical solution was realized by using the software ANSYS FLUENT with RNG k-epsilon turbulence model. The numerical and experimental values were compared and interpreted, and acceptable accordance was observed between them. The calculated lengths and widths of the scour hole were found close to the measured ones. A comparison of the final elevations (t = 15 min.) for experimental and numerical results revealed that; the values of RMSE, MAE errors, and the determination coefficient R-2 were 0.53 cm, 0.48 cm, and 0.94 respectively. The R-2 values are 0.98 and 0.95 for the measured and calculated scour hole length (L) and width (W), respectively.Article Barajın Kısmi ve Ani Yıkılması Durumlarında Oluşan Taşkın Dalgalarının Çarpıtılmış Fiziksel Model ile Deneysel Olarak Araştırılması(2020-09-22) Arkış, Tanıl; Güney, Mehmet ŞükrüBarajlar su temini, sulama, enerji üretimi ve taşkın kontrolü gibi faydalı işlevleri olan önemli suyapılarıdır. Çok büyük can ve mal kaybına sebep olan baraj yıkılması deneysel ve sayısal olarak uzunyıllardan beri araştırılmaktadır. Barajın yıkılması durumunda oluşan taşkın dalgalarının yayılmasıDokuz Eylül Üniversitesi Hidrolik Laboratuvarı açık alanında inşa edilmiş olan Ürkmez Barajı vemansap bölgesinin çarpıtılmış fiziksel modeli yardımıyla deneysel olarak araştırılmıştır. Model ilkyazarın burslu doktora öğrencisi olarak görev aldığı TÜBİTAK 110M240 nolu proje kapsamındatasarlanmış ve inşa edilmiştir. Yatay ölçeği 1/150 ve düşey ölçeği 1/30 olan bu fiziksel model barajgölünü ve baraj mansabında denize kadar olan yerleşim yerini de içermektedir. Modelin geometrikparametreleri mevcut haritalar ve benzeşim kanunları kullanılarak belirlenmiştir. Bu bağlamda 300m2’lik alanda inşa edilmiş olan modelde baraj gölü yaklaşık olarak 11 m3, baraj uzunluğu 2,84 m veyüksekliği 1,07 m’dir. Ürkmez Barajı fiziksel model için makul boyutlara sahip olduğu ve yerleşimyerine yakın olduğu için seçilmiştir. Evler ve karayolu gibi hususlar da modelde yerleştirilmiştir. Suderinlikleri e+ WATER L seviye ölçerleri kullanılarak ölçülmüştür. Hızlar Ultrasonic Velocity Profiler(UVP) algılayıcıları ile belirlenmiştir. Taşkın dalgasının yayılması kamera vasıtasıyla kaydedilmiştir.Elde edilen deneysel bulgular değerlendirilmekte ve bunların prototipte karşılık gelen değerleriyorumlanmaktadır.Article Experimental Investigation of Scour Hole Characteristics for Different Shapes of Piers Caused by Flood Hydrograph Succeeding Steady Flow(Turkish Chamber of Civil Engineers, 2021-03-01) Güney, M. Şükrü; Bor, AslıIn this study, the scour depth and dimensions of the scour hole around different shaped piers for the cases of hydrographs succeeding steady flow were studied experimentally. The experiments were carried out by using circular, square, rectangular, lenticular and rectangular with trapezoidal nose to compare the various scour hole geometries at the same flow conditions. Numerous experiments were conducted in a rectangular flume (18.6 m long, 0.80 m wide and 0.75 m deep) with different triangular shaped hydrographs. The flume bed of 26 cm thickness consists of uniform graded material with D-50 = 1.68 mm. The experiments were carried out in clear water conditions. The temporal variations of the equilibrium scour depths in front of the pier and the scour hole dimensions were recorded by two different cameras. The equilibrium scour depths at lateral sides and downstream of the piers were also measured. Regression analysis was performed in order to derive empirical relations to predict temporal variations of the scour depth in the case of unsteady flow. The shape factor values were also investigated based on the experimental findings and the obtained values were compared to those available in literature. The performance of the obtained empirical relation for circular pier was tested by using limited experimental data available in the literature. The smallest scour hole was observed for the rectangular with trapezoidal noses pier. The increase in the scour hole dimensions for other cross-sections was in the following order: rectangular with circular noses, circular, square and rectangular piers.Article Citation - WoS: 4Citation - Scopus: 4Experimental Investigation of Scour Hole Characteristics for Different Shapes of Piers Caused by Flood Hydrograph Succeeding Steady Flow(Turkish Chamber Civil Engineers, 2021-03-01) Güney, Mehmet ŞükrüIn this study, the scour depth and dimensions of the scour hole around different shaped piers for the cases of hydrographs succeeding steady flow were studied experimentally. The experiments were carried out by using circular, square, rectangular, lenticular and rectangular with trapezoidal nose to compare the various scour hole geometries at the same flow conditions. Numerous experiments were conducted in a rectangular flume (18.6 m long, 0.80 m wide and 0.75 m deep) with different triangular shaped hydrographs. The flume bed of 26 cm thickness consists of uniform graded material with D-50 = 1.68 mm. The experiments were carried out in clear water conditions. The temporal variations of the equilibrium scour depths in front of the pier and the scour hole dimensions were recorded by two different cameras. The equilibrium scour depths at lateral sides and downstream of the piers were also measured. Regression analysis was performed in order to derive empirical relations to predict temporal variations of the scour depth in the case of unsteady flow. The shape factor values were also investigated based on the experimental findings and the obtained values were compared to those available in literature. The performance of the obtained empirical relation for circular pier was tested by using limited experimental data available in the literature. The smallest scour hole was observed for the rectangular with trapezoidal noses pier. The increase in the scour hole dimensions for other cross-sections was in the following order: rectangular with circular noses, circular, square and rectangular piers.Article Experimental Investigation of the Partial Vegetation Effect on the Flood Wave Propagation Resulted From Dam Failure in Urkmez Residential Area by Means of Distorted Physical Model(2021-09-15) Güney, Mehmet Şükrü; Sevinç, EmrahThe purpose of this study is to investigate the effect of partial vegetation on the wave propagationresulted from sudden dam failure in a residential area. Temporal variations of water depths and floodwave propagation velocities were determined and compared with those obtained from theexperiments performed without vegetation. The experiments were performed on the distortedphysical model of Urkmez Dam and its downstream region. The distorted physical model withhorizontal scale of 1/150 and vertical scale of 1/30 contains the dam reservoir, the dam body, theresidential area of Urkmez coastal town until the sea and the partial vegetation. In the model, thereservoir has an active volume of 11.222 m3, the dam body has a length of 2.84 m and a height of 1.07m, and the downstream area is nearly 200 m2. Water depths were measured by e+ WATER L levelsensors placed at various locations of the downstream region. Velocities were measured by ultrasonicvelocity profilers (UVP) located near the level sensors. Flood wave propagation was recorded by thehigh definition digital camera. Experimental findings obtained from the physical model wereconverted to the prototype values, in nature. The changes in water depths and elapsed times, also thechanges in velocities and their occurrence times were determined for different zones of thedownstream area in the presence of vegetation. The experimental results revealed that in such a damfailure, the flood arrives at the sea in 6 s in the absence of vegetation, while in 10 s in the presence ofvegetation. These values correspond to 2.74 min and 4.57 min, respectively in the prototype. Theexistence of vegetation resulted in decrease in flood propagation velocities mainly in the denseresidential area, as expected. It was observed that the maximum water depths were increased at theleft bank and decreased at the right bank, except at level sensor S6 which is very close to the creek. Itwas observed that the maximum depth averaged velocities were decreased in the sparse and denseresidential areas. The existence of the vegetation changed considerably the local velocities duringrising and recession stages of the water depth. It was found that the order of magnitude of theprototype velocities was high and such velocities can cause serious damage mainly in the buildingsclose to the dam body. Because the presence of vegetation caused a decrease in flood propagationvelocities in the sparse and dense residential areas, it would reduce the damages on the buildings inthese areas.Conference Object Citation - WoS: 2Citation - Scopus: 3Experimental Study of the Evolution of the Breach and the Discharge Through the Breach Resulting From Piping Due To Seepage at the Earth-Fill Dam Top(International Association for Hydro-Environment Engineering and Research, 2022) Güney, Mehmet Şükrü; Okan, Merve; Dumlu, E.; Bor Türkben, Aslı; Aklık, Pelin; Tayfur, G.; Bor, Asli; Tayfu, GokmenInternal erosion, also known as piping, is one of the most important causes of earth-fill dam breaks. Many researchers dealing with numerical analyses in this area make some simplified assumptions about the shape of the breach and the discharge of water flowing through the breach. This study was conducted in the scope of the project supported financially by the Scientific and Technological Research Council of Turkey and it consists of experimental study which aims to provide data needed to perform numerical analyses with more realistic approaches. A dam with a height of 0.6 m, a bottom width of 2 m and a crest width of 0.20 m was built in a flume 1 m wide, 0.81 m high and 6.14 m long. Before the construction of the dam, some common soil mechanics tests were carried out. The dam was constructed by using a mixture consisting of 85 % sand and 15 % clay. A circular tunnel with a diameter of 2 cm was created along the centerline at 6 cm below the dam crest. In the closed system, water was pumped from the lower reservoir to the upper channel. Six cameras located at different locations recorded the evolution of the dam failure. Gauss Area formula was applied to determine the time-varied of the breach areas at upstream and downstream sides. The discharge of water through the breach and average flow velocity were determined by using the continuity equation. The changes in water depth in the channel were also recorded. © 2022 IAHR.Article Citation - WoS: 6Citation - Scopus: 5Experimental and Numerical Investigation of the Flood Waves Due To Partial Dam Break(Springer Int Publ Ag, 2022-07-20) Aksoy, Aysegul Ozgenc; Dogan, Mustafa; Guven, Semire Oguzhan; Tanir, Gorkem; Guney, Mehmet Sukru; Özgenç Aksoy, Ayşegül; Oğuzhan Güven, SemireThe potential destruction of dams is a serious danger for the settlements. Dam break events cause serious loss of life and property in the region, regardless of the reason. The time required to give warn the people of the region is very short since floods develop suddenly during dam breaks. For this reason, the investigation of the flood wave propagation that will occur at the time of possible collapse is important for the emergency action plans to be prepared. In this study, the dam break experiments were carried out in the distorted physical model of the Urkmez Dam and at its downstream part also involving the vegetation. The horizontal and vertical scales are 1/150 and 1/30, respectively. The water depths and local velocities were measured by means of elaborated devices, and the propagation of the flood wave was recorded by high-precision cameras. In addition, numerical analysis was achieved by using the FLOW-3D program. According to the results, it is concluded that as the water level decreases, the time to reach the measurement points of the flood increases and the spatial distribution is delayed. The computed values obtained from the numerical model simulated by using the dam reservoir are in better agreement with those obtained from experiments than those calculated by using the outlet hydrograph.Article Citation - WoS: 3Citation - Scopus: 3Effect of Sediment Feeding on Live-Bed Scour Around Circular Bridge Piers(C Ej Publishing Group, 2021-05-01) Gumgum, Firat; Guney, Mehmet SukruThe effect of sediment feeding was investigated in the case of live-bed scour around circular bridge piers under flood waves to provide contributions for future experimental procedures. Circular piers of three different diameters were tested in a long rectangular flume containing uniform sediment layer 25 cm thick, by generating 7 different triangular hydrographs with different durations ranging between 6 and 20 minutes and the peak discharges varying from 18 L/s to 38 L/s. Experiments were first conducted without sediment feeding and total load was collected at predetermined time intervals. Then the same experiments were performed by feeding with the same amount of collected sediment. Time dependent scour depths were measured using UVP. Bed degradation was also determined by using an empirical equation existing in the literature. It was found that feeding with the rates equal to the transported ones did not significantly change the scour depth and total sediment load within the limits of the experiments. No significant bed degradation was observed, except at the upstream end. It was revealed that the sediment feeding may not be required in the experiments where temporal evolution of the scour depth is studied in a sufficiently long flume containing sufficient sediment.Article Citation - WoS: 17Citation - Scopus: 17Experimental Investigation of the Equilibrium Scour Depth Below Submerged Pipes Both in Live-Bed and Clear-Water Regimes Under the Wave Effect(Elsevier Sci Ltd, 2018-11) Dogan, Mustafa; Aksoy, Aysegul Ozgenc; Arisoy, Yalcin; Guney, Mehmet Sukru; Abdi, VahidPipelines are the key structures to carry fluids such as oil, petroleum, gas and water; any inadequate design induces bottom stability problems causing unintended consequences. In the present study, the equilibrium scour depth below submerged pipes due to regular waves was investigated experimentally. During the experiments various pipe diameters, bed material grain sizes and wave characteristics were used. The novelty of the study is that the experiments were performed both in live-bed and clear-water regime conditions. The analysis of the experimental data showed that the equilibrium scour was correlated with Shields parameter as well as Keulegan-Carpenter number, especially for live-bed scour condition. However, in the case of clear-water scour, the Keulegan-Carpenter number was found as a unique non-dimensional parameter that dominates the scour phenomenon. New empirical relations were also proposed for clear-water and live-bed scour separately.Article Citation - WoS: 1Effects of Flow Unsteadiness on the Transport of Bimodal Bed Material(Turkish Chamber Civil Engineers, 2023-11-01) Bombar, Gokcen; Aksoy, Aysegul Ozgenc; Guney, Mehmet SukruThe grain size distribution of the bed load was experimentally investigated under unsteady flow conditions with bimodal mixture of sand and gravel in a laboratory flume. Five various triangular hydrographs were generated. A clockwise behavior for the total bed load versus shear velocity was observed meaning that the bed load during rising limb was higher than that of falling limb. It was found that the percent finer at the plateau of bimodal sediment size distribution curve had higher values during the initial and final phases compared to those obtained during the peak time. At all plateaus, the percent finer values related to the hydrograph peak discharge were in the same order of magnitude with that of the bed material. The sand content of the transported bed material initially decreased, then maintained a constant value during a certain time interval and finally returned to its original value. The sand percent of the bed load decreased in the falling limb showing a counterclockwise loop and within the limits of the experimental campaign, the duration of the hydrograph did not affect the results considerably. Greater peak flow rate of the hydrograph resulted in greater hysteresis. The bimodality index was calculated for all transported sediment samples and it was revealed that its initial and final values were less than that of the bed material but it was approximately the same elsewhere. The 5% finer sediment amount was nearly equal during rising and falling limbs. It was revealed that D50 value of the bed load decreased in the rising limb showing a clockwise loop. The hysteresis was not considerably changed according to the hydrograph characteristics. The clockwise type hysteresis was also observed for the size group of D95. The lag increased as the peak flow rate increased. A strong relation was found between the dimensionless total bed load Wt* and the total work index Wk as well as Wk and the ratio WR/WF. The correlations between the dimensionless total bed load and the unsteadiness parameters P, and Pmod were very weak, whereas a quite high value of determination coefficient was obtained with the unsteadiness parameter Pgt, implying an appreciable interdependence.
