EFFECT OF CYLINDER SURFACE ROUGHNESS TO THE DISTANCE FORMATION OF VORTEX

Oktarina Heriyani; Dan Mugisidi; Irfan Hilmi

doi:10.24853/sintek.14.2.94-98

Authors

Oktarina Heriyani Univeritas Muhammadiyah Prof. Dr. HAMKA
Dan Mugisidi Universitas Muhammadiyah Pof. Dr. HAMKA
Irfan Hilmi Universitas Muhammadiyah Prof. Dr. HAMKA

DOI:

https://doi.org/10.24853/sintek.14.2.94-98

Keywords:

roughness, vortex, surface, pipe.

Abstract

Reduction of cylinder surface resistance can be accomplished by modifying roughness. The surface roughness structure is one of the important parameters which greatly affects the flow of fluid through the cylinder surface. Fluid flow forms a vortex flow pattern with certain characteristics. Therefore, this study aims to analyze the characteristics and effects of fluid flow through the rough surface of the outer wall of the pipe with visualization using Particle Image Velocity (PIV). This research was conducted experimentally at the Faculty of Engineering, UHAMKA. The pipe surface roughness values varied were 0.648 µm and 1.699 µm. The length of the pipe used is 20 cm with a diameter of 2 inches. Measurements are made from the center of the pipe to a distance of 0.16 m. The results show that the surface roughness of the cylinder pipe affects the fluid flow characteristics where the formation of eddies is caused by the addition of the roughness value. The rougher the pipe surface is, the farther the vortex formation will be. The vortex formation closest to the pipe is a pipe with a roughness value of 0.648 µm at a distance of 0.04 m.

Author Biographies

Oktarina Heriyani, Univeritas Muhammadiyah Prof. Dr. HAMKA

Program Studi Teknik MesinFakultas Teknik

Dan Mugisidi, Universitas Muhammadiyah Pof. Dr. HAMKA

Program Studi Teknik MesinFakultas Teknik

Irfan Hilmi, Universitas Muhammadiyah Prof. Dr. HAMKA

Program Studi Teknik MesinFakultas Teknik

References

B. Zhou, X. Wang, W. M. Gho, and S. K. Tan, “Force and flow characteristics of a circular cylinder with uniform surface roughness at subcritical Reynolds numbers,” Appl. Ocean Res., vol. 49, pp. 20–26, 2015, doi: 10.1016/j.apor.2014.06.002.

C. H. K. Williamson and R. Govardhan, “Vortex-induced vibrations,” Annu. Rev. Fluid Mech., 2004, doi: 10.1146/annurev.fluid.36.050802.122128.

B. M. Sumer and J. Fredsøe, Hydrodynamics around cylindrical strucures, vol. 26. 2006.

Y. Gao, L. Liu, L. Zou, Z. Zhang, and B. Yang, “Effect of surface roughness on vortex-induced vibrations of a freely vibrating cylinder near a stationary plane wall,” Ocean Eng., 2020, doi: 10.1016/j.oceaneng.2019.106837.

T. Zhou, S. F. M. Razali, Z. Hao, and L. Cheng, “On the study of vortex-induced vibration of a cylinder with helical strakes,” J. Fluids Struct., vol. 27, no. 7, pp. 903–917, 2011, doi: 10.1016/j.jfluidstructs.2011.04.014.

M. Street and G. Glasgow, “Drag Reduction of Deepwater Risers by the Use of Helical Grooves,” pp. 1–5, 2017.

L. Wang, M. B. Cardenas, D. T. Slottke, R. A. Ketcham, and J. M. Sharp, “Modification of the Local Cubic Law of fracture flow for weak inertia, tortuosity, and roughness,” Water Resour. Res., 2015, doi: 10.1002/2014WR015815.

M.MaceasbA.F.OsoriobF.Bolanosa, “A methodology for improving both performance and measurement errors in PIV,” Flow Meas. Instrum., 2020.

J. Westerweel, G. E. Elsinga, and R. J. Adrian, “Particle image velocimetry for complex and turbulent flows,” Annual Review of Fluid Mechanics. 2013, doi: 10.1146/annurev-fluid-120710-101204.

I. T. Dwita, “Aplikasi Gelembung Hidrogen untuk Analisa Dinamika Fluida pada Bola, Bola Golf dan Orifis di Aliran Fluida.”

D. R. Sabatino, T. J. Praisner, C. R. Smith, and C. V. Seal, “Hydrogen Bubble Visualization,” in Flow Visualization, Imperial College Press, 2012, pp. 27–45.

M. Bazargan, D. Fraser, and V. Chatoorgan, “Effect of buoyancy on heat transfer in supercritical water flow in a horizontal round tube,” J. Heat Transfer, vol. 127, no. 8, pp. 897–902, 2005, doi: 10.1115/1.1929787.

Y. Liu, J. Li, and A. J. Smits, “Roughness effects in laminar channel flow,” J. Fluid Mech., vol. 876, pp. 1129–1145, 2019, doi: 10.1017/jfm.2019.603.

K. Luo, H. Zhang, M. Luo, X. Wu, and J. Fan, “Effects of solid particles and wall roughness on turbulent boundary layer in a two-phase horizontal channel flow,” Powder Technol., vol. 353, pp. 48–56, 2019, doi: 10.1016/j.powtec.2019.05.009.