The Effect of Semi-Circular Protrusions on Cylinder to Flow Structure
Yıl: 2019 Cilt: 40 Sayı: 3 Sayfa Aralığı: 732 - 741 Metin Dili: İngilizce DOI: 10.17776/csj.586028 İndeks Tarihi: 30-01-2020
The Effect of Semi-Circular Protrusions on Cylinder to Flow Structure
Öz: In this study; two dimensional, viscous, incompressible, fully developed and turbulent flows on the surface of the cylinder placed in a channel were analyzed using numerical methods. Momentum and continuity equations were solved numerically by ANSYS FLUENT program using finite volume method. The effect of the half cylinder (d = 4.4 mm) placed on the cylinder diameter (D) 44 mm in different positions (0°, 45°, 90°, 135° and 180°) on the flow structure was examined. Streamlines and the turbulence kinetic energy contours were drawn for the Reynolds number 104 value depending on cylinder diameter. As a result, downstream flow characteristics of cylinders having semi-circular protrusions placed in different positions were examined and drag force coefficients (CD) were obtained. It was concluded that the protrusion on the cylinder placed at different angles changed the flow structure and controlled the separation.
Anahtar Kelime: Silindir Üzerindeki Yarı-Yuvarlak Çıkıntıların Akış Yapısı Üzerine Etkisi
Öz: Bu çalışmada, bir kanala yerleştirilen silindir yüzeyi üzerinde iki boyutlu, viskoz, sıkıştırılamaz, gelişmiş ve türbülanslı akış, sayısal yöntemler kullanılarak analiz edilmiştir. Momentum ve süreklilik denklemleri ANSYS FLUENT programı ile sonlu hacimler yöntemi kullanılarak sayısal olarak çözülmüştür. Farklı konumlarda (0°, 45°, 90°, 135° ve 180°) 44 mm çapında (D) bir silindir üzerine yerleştirilmiş yarım silindirin (d = 4.4 mm) akış yapısına etkisi incelenmiştir. Akım çizgileri ve türbülans kinetik enerji konturları, silindir çapına bağlı olarak Reynolds sayısı 104 değeri için çizilmiştir. Sonuç olarak, farklı konumlara yerleştirilmiş yarı dairesel çıkıntılara sahip olan silindirlerin akım yönünde akış özellikleri incelenmiş, sürtünme direnç katsayıları (CD) elde edilmiştir. Farklı açılarda yerleştirilen silindir üzerindeki çıkıntının akış yapısını değiştirdiği ve ayrımı kontrol ettiği sonucuna varılmıştır.
Anahtar Kelime: Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık
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| APA | KOCA F, ÖZTÜRK A (2019). The Effect of Semi-Circular Protrusions on Cylinder to Flow Structure. , 732 - 741. 10.17776/csj.586028 |
| Chicago | KOCA Ferhat,ÖZTÜRK Adnan The Effect of Semi-Circular Protrusions on Cylinder to Flow Structure. (2019): 732 - 741. 10.17776/csj.586028 |
| MLA | KOCA Ferhat,ÖZTÜRK Adnan The Effect of Semi-Circular Protrusions on Cylinder to Flow Structure. , 2019, ss.732 - 741. 10.17776/csj.586028 |
| AMA | KOCA F,ÖZTÜRK A The Effect of Semi-Circular Protrusions on Cylinder to Flow Structure. . 2019; 732 - 741. 10.17776/csj.586028 |
| Vancouver | KOCA F,ÖZTÜRK A The Effect of Semi-Circular Protrusions on Cylinder to Flow Structure. . 2019; 732 - 741. 10.17776/csj.586028 |
| IEEE | KOCA F,ÖZTÜRK A "The Effect of Semi-Circular Protrusions on Cylinder to Flow Structure." , ss.732 - 741, 2019. 10.17776/csj.586028 |
| ISNAD | KOCA, Ferhat - ÖZTÜRK, Adnan. "The Effect of Semi-Circular Protrusions on Cylinder to Flow Structure". (2019), 732-741. https://doi.org/10.17776/csj.586028 |
| APA | KOCA F, ÖZTÜRK A (2019). The Effect of Semi-Circular Protrusions on Cylinder to Flow Structure. Cumhuriyet Science Journal, 40(3), 732 - 741. 10.17776/csj.586028 |
| Chicago | KOCA Ferhat,ÖZTÜRK Adnan The Effect of Semi-Circular Protrusions on Cylinder to Flow Structure. Cumhuriyet Science Journal 40, no.3 (2019): 732 - 741. 10.17776/csj.586028 |
| MLA | KOCA Ferhat,ÖZTÜRK Adnan The Effect of Semi-Circular Protrusions on Cylinder to Flow Structure. Cumhuriyet Science Journal, vol.40, no.3, 2019, ss.732 - 741. 10.17776/csj.586028 |
| AMA | KOCA F,ÖZTÜRK A The Effect of Semi-Circular Protrusions on Cylinder to Flow Structure. Cumhuriyet Science Journal. 2019; 40(3): 732 - 741. 10.17776/csj.586028 |
| Vancouver | KOCA F,ÖZTÜRK A The Effect of Semi-Circular Protrusions on Cylinder to Flow Structure. Cumhuriyet Science Journal. 2019; 40(3): 732 - 741. 10.17776/csj.586028 |
| IEEE | KOCA F,ÖZTÜRK A "The Effect of Semi-Circular Protrusions on Cylinder to Flow Structure." Cumhuriyet Science Journal, 40, ss.732 - 741, 2019. 10.17776/csj.586028 |
| ISNAD | KOCA, Ferhat - ÖZTÜRK, Adnan. "The Effect of Semi-Circular Protrusions on Cylinder to Flow Structure". Cumhuriyet Science Journal 40/3 (2019), 732-741. https://doi.org/10.17776/csj.586028 |
