Abstract
Mixtures of 3 He in superfluid 4 He provide an interesting and important system for testing theories of convection and for studying nonlinear dynamics. Here we describe experimental observations of chaotic bursting in a convecting layer of 3 He -superfluid-4 He . For aspect ratio Γ=6.0 and Prandtl number Pr=0.3, we find intermittent bursts out of a chaotic state. This state evolved via a series of well-defined transitions involving established routes to chaos. Above the onset of bursting the average length of a burst-free region l varies as a power law: l ∝(R−Rb)−γ with γ=4.6; a power-law dependence of l is expected. An unexpected result is that the average length of a burst varies as (R−Rb)δ with δ=2.0. In addition, a particularly novel state was seen for Γ=4.25 and Pr=0.12, where there occurs a reversible switching transition involving two chaotic attractors.
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 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.
