TY  - JOUR
T1  - Düşey Yüzlü Duvar Önünde Pervane Jetinin Neden Olduğu Oyulma
TT  - Scour Induced by Propeller Water Jet in front of a Vertical Wall
AU  - Doğu, Ali
AU  - Cihan, Kubilay
AU  - Yuksel Ozan, Ayse
AU  - Yıldız, Osman
AU  - Ateş, Hayri
PY  - 2022
DA  - July
DO  - 10.29137/umagd.1090579
JF  - International Journal of Engineering Research and Development
JO  - IJERAD
PB  - Kirikkale University
WT  - DergiPark
SN  - 1308-5506
SP  - 679
EP  - 690
VL  - 14
IS  - 2
LA  - tr
AB  - Gemilerin seyir ve manevraları sırasında deniz tabanında meydana gelebilecek oyulmalar, önlem alınmadığı takdirde ciddi sorunlara neden olabilir. Oluşacak oyulmaların tahmini liman yapılarının stabilitesi için büyük önem taşımaktadır. Bu çalışmada, düşey yüzlü bir duvar önünde oluşan oyulma deneysel olarak incelenmiştir. Bu amaçla, 3.2x2.0x1.0 m ölçülere sahip deney tankının tabanına ortalama elek çapı d50= 0.24 mm ve özgül kütlesi ρ=2650 kg/m3 olarak belirlenen kuvars kumu serilmiştir. Deneylerde 0.06 m çaplı pirinçten imal edilmiş bir pervane kullanılmıştır. Pervane kendi ekseni ile polikarbon esaslı düşey yüzlü bir duvar arasında 4 farklı konumda yerleştirilmiş ve 3 farklı dönüş hızında çalıştırılmıştır. Hız ölçümleri Akustik Doppler prensibi ile çalışan ADVP kullanılarak elde edilmiştir. Düşey yüzlü duvar ile pervane ekseni arasındaki mesafenin ve pervane dönüş hızının oyulma mekanizması üzerindeki etkilerine dair bulgular literatürdeki çalışmalarla karşılaştırılmıştır.
KW  - Oyulma
KW  - Düşey yüzlü duvar
KW  - Pervane jeti
KW  - Sınırlandırılmış oyulma
N2  - Scours that may occur on the sea floor during the navigation and maneuvers of ships can cause serious problems if precautions are not taken. The estimation of the scours to occur is of great importance for the stability of the port structures. In this study, scour in front of a vertical wall was investigated experimentally. For this purpose, quartz sand with an average sieve diameter of d50= 0.24 mm and a specific mass of ρ= 2650 kg/m3 was laid on the bottom of the 3.2x2.0x1.0 m test tank. A propeller made of brass with a diameter of 0.06 m was used in the experiments. The propeller was placed in 4 different positions between its axis and the polycarbon-based vertical wall and operated at 3 different rotation speeds. Velocity measurements were obtained using an ADVP operating on the Acoustic Doppler principle. The findings on the effects of the distance between the vertical wall and the propeller axis and the propeller rotation speed on the scour mechanism were compared with the studies in the literature.
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UR  - https://doi.org/10.29137/umagd.1090579
L1  - https://dergipark.org.tr/en/download/article-file/2321027
ER  -