Computational fluid dynamics modeling patterns and force characteristics of flow over in-line four square cylinders

Yidan Song, Rui Zhu, Terrence W. Simon, Gongnan Xie

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The flow over four square cylinders in an in-line, square arrangement was numerically investigated by using the finite volume method with CFD techniques. The working fluid is an incompressible ideal gas. The length of the sides of the array, L, is equal. The analysis is carried out for a Reynolds number of 300, with center-to-center distance ratios, L/D, ranging from 1.5 to 8.0. To fully understand the flow mechanism, details in terms of lift and drag coefficients and Strouhal numbers of the unsteady wake frequencies are analyzed, and the vortex shedding patterns around the four square cylinders are described. It is concluded that L/D has important effects on the drag and lift coefficients, vortex shedding frequencies, and flow field characteristics.

Original languageEnglish (US)
Pages (from-to)2553-2563
Number of pages11
JournalThermal Science
Volume21
Issue number6
DOIs
StatePublished - 2017

Bibliographical note

Funding Information:
The authors wish thanks, the National Natural Science Foundation of China (51676163) and the Fundamental Research Funds of Shaanxi Province (2015KJXX-12). This work was carried out in part using computing resources at the University to Minnesota Supercomputing Institute.

Publisher Copyright:
© 2017 Society of Thermal Engineers of Serbia.

Keywords

  • CFD
  • Drag coefficients
  • Flow patterns
  • Four square cylinders
  • Lift coefficients
  • Strouhal numbers

Fingerprint

Dive into the research topics of 'Computational fluid dynamics modeling patterns and force characteristics of flow over in-line four square cylinders'. Together they form a unique fingerprint.

Cite this