Abstract
As a basic study of the aero-acoustic noise, large eddy simulations were carried out for a fixed circular cylinder at Reynolds number(Re=9.0×10⁴) using commercial CFD code, FLUENT. The subgrid-scale turbulent viscosity was modeled by Smagorinsky- Lilly model adapted to structured meshes. The results of LES analysis showed that time-averaged value, C<SUB>D</SUB> was approximately 1.47 which was considerably adjacent with the experimentally measured value of 1.32 in comparison with the results of twoequation turbulent models performed by previous researchers. It was observed that there were the very small acoustic pressure fluctuations with the same frequency of the Karman vortex street. In conclusion, the analysis of LES provided the improved results in the prediction of drag and lift coefficient in addition to acoustic pressure distribution than two other turbulent models.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
