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Dye Injection Flow Visualization Around a Rotating Circular Cylinder

Yıl 2020, Cilt: 4 Sayı: 4, 185 - 189, 20.12.2020
https://doi.org/10.26701/ems.794683

Öz

In this study, the visualization of the flow structure around a circular cylinder was investigated with dye injection experiments. The experiments were carried out in the closed-circuit open water channel in Osmaniye Korkut Ata University. Experiments have been studied on a circular cylinder at different rotational speeds. Experiments were carried out at Re = 1000 according to cylinder diameter and free stream velocity. In the study, with the increase of the rotation speed, an acceleration layer occurs between the fluid velocity in the cylinder wake in the flow direction and the flow from the circumference of the cylinder and the speed of rotation. This situation caused the complete disappearance of the vortex ruptures in the flow direction and the emergence of Kelvin Helmhotz fluctuations. As a result of the study, it is seen that the flow control is insufficient at low rotational speeds, but the flow can be controllable at high rotational speeds.

Destekleyen Kurum

TUBİTAK

Proje Numarası

218M357

Teşekkür

This study was supported by the Scientific and Technological Research Council of Turkey (TUBITAK) within the scope of the project named TUBITAK-218M357. Thanks to TUBITAK for their support.

Kaynakça

  • Manelil, P., N., Tiwari, S. (2019). Wake characteristics of a sphere performing transverse rotary oscillations. European Journal of Mechanics- B/Fluids, 77:148-161, https://doi.org/10.1016/j.euromechflu.2019.04.009
  • Akar, A., M. (2008). Vortex Control ın Side by Side Circular Cylinders in Shallow Waters. Çukurova University, Institute of Natural and Applied Sciences, Ph.D. Thesis.
  • Cheng, M. (2007). Characteristics of two-dimensional flow around a rotating circular cylinder near a plane wall. Physics of Fluids 19, 063601, https://doi.org/10.1063/1.2738608
  • Fallah, K., Fardad, A. A., Fattahi, E., Zadeh, N. S., Ghaderi, A. (2012). Numerical simulation of planar shear flow passing a rotating cylinder at low Reynolds numbers. Acta Mechanica, 223:221–236, DOI 10.1007/s00707-011-0561-4
  • Guo, X. H., Lin, J. Z., Tu, C. X., & Wang, H. L. (2009). Flow past two rotating circular cylinders in a side-by-side arrangement. Journal of Hydrodynamics, 21(2), 143-151. DOI: 10.1016/S1001-6058(08)60131-6
  • Firat, E., Ozkan, G. M., Akilli, H. (2017). PIV measurements in the near wakes of hollow cylinders with holes. Experiments in Fluids, 58(5), 39. DOI 10.1007/s00348-017-2334-x Gad-el-Hak, M., & Bushnell, D. M. (1991). Separation control: Review. Journal of Fluids Engineering, 113:5.
  • Dimotakis, P., Tokumaru, P. T. (1991). Rotary oscillation control of a cylinder wake. J. Fluid Mech. 224:77-90.
  • Lam, M. K. (2009). Vortex shedding flow behind a slowly rotating circular cylinder. Journal of Fluids and Structures. 25:245-262. https://doi.org/10.1016/j.jfluidstructs.2008.04.005
  • Sengupta, T. K., Deb K., Talla, S. B. (2007). Control of flow using genetic algorithm for a circular cylinder executing rotary oscillation, Comput. Fluids, 36(3), 578–600, https://doi.org/10.1016/j.compfluid.2006.03.002.
  • Pralits,J. O., Brandt,L., Giannetti, F. (2010). Instability and sensitivity of the flow around a rotating circular cylinder, J. Fluid Mech., 650: 513–536, DOI: https://doi.org/10.1017/S0022112009993764.
  • Kumar, S., Lopez,C., Probst,O., Francisco,G., Askari,D., Yang, Y. (2013). Flow past a rotationally oscillating cylinder, J. Fluid Mech., 735:307–346. DOI: https://doi.org/10.1017/jfm.2013.469
Yıl 2020, Cilt: 4 Sayı: 4, 185 - 189, 20.12.2020
https://doi.org/10.26701/ems.794683

Öz

Proje Numarası

218M357

Kaynakça

  • Manelil, P., N., Tiwari, S. (2019). Wake characteristics of a sphere performing transverse rotary oscillations. European Journal of Mechanics- B/Fluids, 77:148-161, https://doi.org/10.1016/j.euromechflu.2019.04.009
  • Akar, A., M. (2008). Vortex Control ın Side by Side Circular Cylinders in Shallow Waters. Çukurova University, Institute of Natural and Applied Sciences, Ph.D. Thesis.
  • Cheng, M. (2007). Characteristics of two-dimensional flow around a rotating circular cylinder near a plane wall. Physics of Fluids 19, 063601, https://doi.org/10.1063/1.2738608
  • Fallah, K., Fardad, A. A., Fattahi, E., Zadeh, N. S., Ghaderi, A. (2012). Numerical simulation of planar shear flow passing a rotating cylinder at low Reynolds numbers. Acta Mechanica, 223:221–236, DOI 10.1007/s00707-011-0561-4
  • Guo, X. H., Lin, J. Z., Tu, C. X., & Wang, H. L. (2009). Flow past two rotating circular cylinders in a side-by-side arrangement. Journal of Hydrodynamics, 21(2), 143-151. DOI: 10.1016/S1001-6058(08)60131-6
  • Firat, E., Ozkan, G. M., Akilli, H. (2017). PIV measurements in the near wakes of hollow cylinders with holes. Experiments in Fluids, 58(5), 39. DOI 10.1007/s00348-017-2334-x Gad-el-Hak, M., & Bushnell, D. M. (1991). Separation control: Review. Journal of Fluids Engineering, 113:5.
  • Dimotakis, P., Tokumaru, P. T. (1991). Rotary oscillation control of a cylinder wake. J. Fluid Mech. 224:77-90.
  • Lam, M. K. (2009). Vortex shedding flow behind a slowly rotating circular cylinder. Journal of Fluids and Structures. 25:245-262. https://doi.org/10.1016/j.jfluidstructs.2008.04.005
  • Sengupta, T. K., Deb K., Talla, S. B. (2007). Control of flow using genetic algorithm for a circular cylinder executing rotary oscillation, Comput. Fluids, 36(3), 578–600, https://doi.org/10.1016/j.compfluid.2006.03.002.
  • Pralits,J. O., Brandt,L., Giannetti, F. (2010). Instability and sensitivity of the flow around a rotating circular cylinder, J. Fluid Mech., 650: 513–536, DOI: https://doi.org/10.1017/S0022112009993764.
  • Kumar, S., Lopez,C., Probst,O., Francisco,G., Askari,D., Yang, Y. (2013). Flow past a rotationally oscillating cylinder, J. Fluid Mech., 735:307–346. DOI: https://doi.org/10.1017/jfm.2013.469
Toplam 11 adet kaynakça vardır.

Ayrıntılar

Birincil Dil İngilizce
Konular Makine Mühendisliği
Bölüm Research Article
Yazarlar

Coskun Özalp 0000-0003-2249-7268

Cemre Polat 0000-0002-7001-1042

Doğan Burak Saydam 0000-0001-8453-2917

Mustafa Söyler 0000-0003-4767-5825

Proje Numarası 218M357
Yayımlanma Tarihi 20 Aralık 2020
Kabul Tarihi 22 Eylül 2020
Yayımlandığı Sayı Yıl 2020 Cilt: 4 Sayı: 4

Kaynak Göster

APA Özalp, C., Polat, C., Saydam, D. B., Söyler, M. (2020). Dye Injection Flow Visualization Around a Rotating Circular Cylinder. European Mechanical Science, 4(4), 185-189. https://doi.org/10.26701/ems.794683

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