Direct numerical simulation of cavitation noise for a 3D circular cylinder cross-flow

Youngmin Bae, Jung H. Seo, Young J. Moon, Byeong Rog Shin

Research output: Contribution to conferencePaper

Abstract

In this study, cavitation noise for a circular cylinder cross-flow is directly simulated for Reynolds number based on the cylinder diameter, Re D = 200 and 3900, and cavitation number, σ = 0.7 ∼ 2. The cavitating flow and noise are predicted by the compressible Navier-Stokes equations written for the two-phase fluid, employing a density-based homogeneous equilibrium model with a linearly-combined equation of state. To resolve the linear and non-linear waves in the cavitating flow, a sixth-order compact central scheme is utilized with a selective spatial filtering technique. It is observed that, at sub- and supercritical cavitation numbers, the cavitating flow and noise characteristics are significantly changed by the shock waves due to the collapse of the cloud cavitation in the wake. It is also shown that spanwise flow structures over the cylinder is quite coherent to the strength of monopole shock waves.

Original languageEnglish
Pages605-610
Number of pages6
Publication statusPublished - 2009
Event5th International Conference on Computational Fluid Dynamics, ICCFD 2008 - Seoul, Korea, Republic of
Duration: 2008 Jul 72008 Jul 11

Other

Other5th International Conference on Computational Fluid Dynamics, ICCFD 2008
CountryKorea, Republic of
CitySeoul
Period08/7/708/7/11

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

Fingerprint Dive into the research topics of 'Direct numerical simulation of cavitation noise for a 3D circular cylinder cross-flow'. Together they form a unique fingerprint.

  • Cite this

    Bae, Y., Seo, J. H., Moon, Y. J., & Shin, B. R. (2009). Direct numerical simulation of cavitation noise for a 3D circular cylinder cross-flow. 605-610. Paper presented at 5th International Conference on Computational Fluid Dynamics, ICCFD 2008, Seoul, Korea, Republic of.