A Review on Numerical Study of Acoustic Waves for an Unsteady Flow past a Circular Cylinder

  Kunal R Bhatt,  Hardik R Gohel

The study of flow past single circular cylinder is one of the areas where extensive research has been carried out especially for the vortex shedding. But the acoustic related phenomenon for the same case is not much well understood. Characterizing the problem of fluid structure interaction is very difficult. In this review the term acoustic wave is more focused. The second important term that is most related is the vortex wake. In case of getting converged numerical solution, there must be separate computation of flow and noise. The assumed source of noise may be the vortex itself as especially when the flow becomes unsteady. Very few numerical studies have been done that could show the interaction or the coupling mechanism of acoustic wave and vortex wake. The generation of noise is due to many reasons such as vortices in the wake region, turbulent nature and so on. But the challenging task is to measure the relative intensity between various parameters like sound pressure level, vortex shedding frequency, etc. LES could be the good turbulence model as the variation in turbulence results in variation in acoustic wave nature.

Keywords- Vortex shedding, Sound pressure level, Reynolds Number, unsteady flow, LES, Strouhal Number

Unique Identification Number - IJEDR1404056
Page Number(s) - 3725-3729
Pubished in - Volume 2 | Issue 4 | Dec 2014
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Kunal R Bhatt,  Hardik R Gohel,   "A Review on Numerical Study of Acoustic Waves for an Unsteady Flow past a Circular Cylinder", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.2, Issue 4, pp.3725-3729, Dec 2014, Available at :http://www.ijedr.org/papers/IJEDR1404056.pdf