Abstract
Transient flow around an impulsively started rectangular cylinder with and without cutting its front edges is simulated by a vortex method in order to know the reason why the drag coefficient is reduced by the cut-out of the front edges which was reported in earlier experimental papers by the research group of the present authors. Two approaches are used in the present paper to the vortex method, which is combined with a panel method ; (1) the vortex blob and sheet method and (2) the method using local smoothing interpolation function combined with the vortex sheet method. The comparison of the numerical results of the rectangular cylinder without cutting of its edges between the two approaches shows that the method (2) has more numerical diffusion than the method (1). The numerical results show that the reduction of the drag coefficient due to cutting out of its front edges is simulated by the method (1), comparing with the earlier experimental results, and the strength of the shedding vortices from the front edges becomes less by the cutting out than without the cutting out.
Sign-in/Register to access full text options 
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 callMore From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
Disclaimer: 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.
