Numerical Simulation of Fluid Flow Around Circular Cylinder and Three Passive Controls to Reduce Drag Coefficient at Re=500

Chairul Imron, Amirul Hakam, Basuki Widodo, Tri Yogi Yuwono

Abstract


Numerical experiments and simulations of fluid flow through the outer surface of a circular cylinder and three passive controls have been investigated to determine the proper configuration of three passive controls in reducing the drag coefficient. One of passive controls is placed in front of the cylinder with distance ratio (S:D) = 2:4 and the other two passive controls are placed behind the cylinder with distance ratio (T:D) = 1:6;1:8. The angle between two passive controls behind the cylinder are a =30 deg;60 deg;90 deg;120 deg. The Navier-Stokes equations for incompressible, viscous and unsteady fluid flows is solved based on SIMPLE (Semi-Implicit for Pressure-Linked Equations) algorithms and discretized using finite-difference method. The difference in a affects the reduction in the drag coefficient significantly. The best configuration of three passive controls design is one of passive controls put at the distance ratio S=D = 2:4;T=D = 1:6 and a = 60. This configuration can reduce the drag coefficient optimally to 21.2109%.

Keywords


Drag Reduction; Passive Controls; Numerical Simulations

Full Text:

PDF

References


Y. Triyogi, D. Suprayogi, and E. Spirda, “Reducing the drag on a circular cylinder by upstream installation of an I-type bluff body as passive control,” Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, vol. 223, no. 10, pp. 2291–2296, 2009.

T. Igarashi and Y. Shiba, “Drag reduction for D-shape and I-shape cylinders,” JSME International Journal Series B Fluids and Thermal Engineering, vol. 49, no. 4, pp. 1036–1042, 2006.

T. Yuwono and W. Widodo, “Flow characteristic around a D-type cylinder near a plane wall,” in Regional Conferences on Mechanical and Aerospace Technology, Bali, 2010.

B. Widodo, T. Yuwono, and C. Imron, “The influence of distance between passive control and circular cylinder on wake,” in Journal of Physics: Conference Series, vol. 890, no. 1, 2017, p. 012053.

C. Imron, L. Mardianto, B. Widodo, and T. Yuwono, “Mathematical modeling of drag coefficient reduction in circular cylinder using two passive controls at Re=1000,” Mathematical and Computational Applications, vol. 23, no. 1, p. 2, 2018.

A. Hakam, B. Widodo, T. Yuwono, and C. Imron, “Numerical investigation of the flow around circular cylinder with two passive controls,” in Journal of Physics: Conference Series, vol. 974, no. 1, 2018, p. 012011.

C.-H. Kuo and C.-C. Chen, “Passive control of wake flow by two small control cylinders at Reynolds number 80,” Journal of fluids and structures, vol. 25, no. 6, pp. 1021–1028, 2009.

Y. Bao and J. Tao, “The passive control of wake flow behind a circular cylinder by parallel dual plates,” Journal of Fluids and Structures, vol. 37, pp. 201–219, 2013.

L. Lu, M. Liu, B. Teng, Z. Cui, G. Tang, M. Zhao, and L. Cheng, “Numerical investigation of fluid flow past circular cylinder with multiple control rods at low Reynolds number,” Journal of Fluids and Structures, vol. 48, pp. 235–259, 2014.

H. Versteeg and W. Malalasekera, An introduction to computational fluid dynamics: the finite volume method. Pearson education, 2007.

M. Matyka, “Solution to two-dimensional incompressible Navier-Stokes equations with simple, simpler and vorticity-stream function approaches. driven-lid cavity problem: Solution and visualization,” arXiv preprint physics/0407002, 2004.

T. Bergman, F. Incropera, D. DeWitt, and A. Lavine, Fundamentals of heat and mass transfer. John Wiley & Sons, 2011.

R. Burden and J. Faires, “Numerical differentiation & integration numerical differentiation I,” Numerical analysis, pp. 174–184, 2011.




DOI: http://dx.doi.org/10.12962/j24775401.v6i1.5331

Refbacks

  • There are currently no refbacks.



View My Stats


Creative Commons License
International Journal of Computing Science and Applied Mathematics by Pusat Publikasi Ilmiah LPPM, Institut Teknologi Sepuluh Nopember is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Based on a work at https://iptek.its.ac.id/index.php/ijcsam.