Numerical Simulation of Low Reynolds Number Incompressible Flow over Two Side-by-Side Circular Cylinders

Forfattere

  • Sintu Singha
  • K. P. Sinhamahapatra Professor & Head Department of Aerospace Engineering IIT Kharagpur

Nøgleord:

Side-by-side cylinders, wake structure, gap flow, vortex pairing, flip-flopping wake, synchronized vortex shedding, unsteady fluid dynamic forces, collocated grid

Resumé

A second-order accurate unstructured collocated implicit finite volume method based on the primitive-variable formulation is used to study the flow field around a pair of cylinders arranged in side-by-side configuration. Numerical simulations are carried out for long time on a high-resolution mesh to obtain the appropriate evolution of the overall flow field and vortex structure of the wakes. A wide range of gaps between the cylinders is considered over a range of Reynolds numbers to study the sequential changes in the wake patterns and other important flow parameters. Both the input parameters have very strong influence on the wake pattern, which in turn has a dominant influence on the fluid dynamic forces. Mean drag coefficient, root-mean-squared lift coefficient and Strouhal number are correlated with the input parameters. 

Forfatterbiografi

  • K. P. Sinhamahapatra, Professor & Head Department of Aerospace Engineering IIT Kharagpur
    Department of Aerospace Engineering,IIT KharagpurProfessor

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Publiceret

2013-12-23

Nummer

Årg. 3 Nr. 3 (2013)

Sektion

Research Articles

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