%0 Journal Article
	%A H. Ait Abderrahmane and  M. Fayed and  H. D. Ng and  G. H. Vatistas
	%D 2017
	%J International Journal of Mechanical and Mechatronics Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 124, 2017
	%T Synchronization of Traveling Waves within a Hollow-Core Vortex
	%U https://publications.waset.org/pdf/10006754
	%V 124
	%X The present paper expands details and confirms the transition mechanism between two subsequent polygonal patterns of the hollow-core vortex. Using power spectral analysis, we confirm in this work that the transition from any N-gon to (N+1)-gon pattern observed within a hollow-core vortex of shallow rotating flows occurs in two steps. The regime was quasi-periodic before the frequencies lock (synchronization). The ratios of locking frequencies were found to be equal to (N-1)/N.

	%P 742 - 746