Numerical analysis of flow structures behind the bluff body at different aspect ratio

Aditya Sharma, Pankaj Kumar, Santosh Kumar Singh*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


The present paper aimed for the numerical study on the flow structures behind the bluff body with different shapes. The variation of shapes like circular to elliptical was obtained by changing the major to minor axis ratio while keeping the Reynolds number constant. This numerical study was done with help of finite volume method using commercial software Ansys-Fluent at the lower subcritical Reynolds number, i.e., 5000and 10000 for comparison of different parameter variations separately. As the earlier studies reveals the significant effect of blockage ratio on flow features on circular cylinder, this work will be extended for different aspect ratio. The basic results, which are validated against the published results, shows the flow feature are highly sensitive to shape and blockage ratio even for different shapes. The mean pressure and turbulent kinetic energy for different blockage and aspect ratio is presented and found the strong interactions between them.

Original languageEnglish
Article number012056
JournalIOP Conference Series: Materials Science and Engineering
Issue number1
StatePublished - 2018
Externally publishedYes
Event2nd International Conference on Advances in Mechanical Engineering, ICAME 2018 - Kattankulathur, India
Duration: 22 Mar 201824 Mar 2018


  • Bluff body
  • Drag coefficient
  • cylinder
  • subcritical Reynolds number


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