Abstract
We report the experimentally investigated evolution of thermal counterflow across a cylinder in He II by using a modified particle tracking visualization technique with solidified hydrogen particles as tracers. It was found, for a relatively small velocity of the normal fluid, that the flow is similar to laminar flow over cylinder in classical fluids. Increasing the flow velocity leads to the appearance of a pair of normal fluid eddies downstream the cylinder. We confirm the existence of large scale eddies both upstream and downstream of the cylinder at the highest velocities achieved. In addition to the previously reported turbulent state, we confirm the existence of a state where more than one pair of eddies coexist downstream from the cylinder.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
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.