Soft particles display a rich zoology of dynamics with bifurcation depending on the interfacial mechanical response. One intriguing issue is origin motions along helices, dynamic only observed active particles. Numerical simulations vesicle, passive particle in Poiseuille flow, show that this called swirling fact more ubiquitous and emerges spontaneously. Swirling ultimate state symmetry loss s...

BACKGROUND Left ventricular assist device (LVAD) has become an alternative treatment for end-stage heart failure patients. Series type of LVAD, as a novel LVAD, has attracted more and more attention. The hemodynamic effects of series type LVAD on aortic blood pattern are considered as its important characteristics; however, the precise mechanism of it is still unclear. METHODS To clarify the ...

This thesis is motivated by the necessity to understand the flow structure of turbulent flows in bends encountered in many technical applications such as heat exchangers, nuclear reactors and internal combustion engines. Flows in bends are characterised by strong secondary motions in terms of counter-rotating vortices (Dean cells) set up by a centrifugal instability. Specifically the thesis dea...