Numerical and Experimental Investigation of Newtonian Flow around a Confined Square Cylinder

Authors

  • Guler Bengusu Tezel
    Affiliation

    Department of Chemical Engineering, Faculty of Engineering and Architecture, Abant Izzet Baysal University, 14280, Bolu, Turkey

  • Kerim Yapici
    Affiliation

    Department of Chemical Engineering, Faculty of Engineering and Architecture, Suleyman Demirel University, 32260, Isparta, Turkey

  • Yusuf Uludag
    Affiliation

    Department of Chemical Engineering, Faculty of Engineering, Middle East Technical University, 06800 Ankara, Turkey

https://doi.org/10.3311/PPch.12377

Abstract

The confined flow of a Newtonian fluid around a square cylinder mounted in a rectangular channel was investigated both numerically and experimentally. Ratio between the pipe and channel height, the blockage ratio, is kept constant at 1/4. The flow variables including streamlines, vorticity and drag coefficients were calculated at 0 ≤ Re ≤ 50 using finite volume method. The velocity terms in the momentum equations are approximated by a higher-order and bounded scheme of Convergent and Universally Bounded Interpolation Scheme for the Treatment of Advection (CUBISTA). Particle Image Velocimetry (PIV) was also used to obtain the two-dimensional velocity field. The flow measurements were conducted for 1 ≤ Re ≤ 50. Streamline and vorticity results obtained by PIV are compared with those of the numerical simulation. Based on this comparison, good agreement is found between the numerical and experimental results in a qualitative manner.

Keywords:

square cylinder, confined channel, newtonian fluid, finite volume method, PIV

Published Online

2018-08-29

How to Cite

Tezel, G. B., Yapici, K., Uludag, Y. “Numerical and Experimental Investigation of Newtonian Flow around a Confined Square Cylinder”, Periodica Polytechnica Chemical Engineering, 63(1), pp. 190–199, 2019. https://doi.org/10.3311/PPch.12377

Issue

Section

Articles