Numerical simulation of cross-flow around four circular cylinders in-line square configuration near a plane wall at supercritical Reynolds number

A. Grummy Wailanduw*, Triyogi Yuwono

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

In this research, it would be investigated numerically the effects of spacing between centres of cylinders (L) on flow characteristics around four circular cylinders in in-line square configuration near a plane wall at supercritical Reynolds number. A spacing ratio between centres of cylinders (L/D) would be varied. It is set at L/D = 2.0, 2.7, and 4.0, while a gap ratio between the surface of lower cylinders and the wall (G/D) was fixed at 0.2. To analyse flow characteristics around cylinders is used FLUENT 6.3.26 software. Two-dimensional Unsteady Reynolds Averaged Navier Stokes equations and SST k-ω turbulence equations are solved with finite volume method. This simulation was performed at Reynolds number 8.4 × 106 based on a single circular cylinder diameter and free stream velocity. The numerical results show that at supercritical Reynolds number separation point of the upstream cylinders and the downstream cylinders move far from front-ward of cylinder, while a minimum pressure of cylinder-1 decrease particularly at lower surface. At the downstream cylinders, increasing of spacing ratio cause of reattachment point at lower surface move to front-ward. While at the plane wall, increasing of spacing ratio cause of the negative pressure points starts to recover the static pressure move to back-ward of wall.

Original languageEnglish
Title of host publicationDisruptive Innovation in Mechanical Engineering for Industry Competitiveness
Subtitle of host publicationProceedings of the 3rd International Conference on Mechanical Engineering, ICOME 2017
EditorsVivien S. Djanali, Suwarno, Bambang Pramujati, Volodymyr A. Yartys
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735416994
DOIs
Publication statusPublished - 13 Jul 2018
Event3rd International Conference on Mechanical Engineering, ICOME 2017 - Surabaya, Indonesia
Duration: 5 Oct 20176 Oct 2017

Publication series

NameAIP Conference Proceedings
Volume1983
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd International Conference on Mechanical Engineering, ICOME 2017
Country/TerritoryIndonesia
CitySurabaya
Period5/10/176/10/17

Fingerprint

Dive into the research topics of 'Numerical simulation of cross-flow around four circular cylinders in-line square configuration near a plane wall at supercritical Reynolds number'. Together they form a unique fingerprint.

Cite this