Affiliation:
1. University of Cambridge , Cambridge, UK
Abstract
Abstract
A thin vortex tube can undergo a sudden expansion, often leading to instability and turbulence, if subject to an external deceleration. This is called vortex breakdown, and it is often observed in swirling flow in a slowly diverging pipe, and in the scroll vortices that develop on the upper surface of a delta wing. Simple model problems are presented for vortex breakdown, both in pipes and on delta wings. However, attempts to develop a generalized theory of vortex breakdown have proved to be problematic, as discussed towards the end of the chapter. Indeed, despite many analytical and experimental studies, the entire subject of vortex breakdown remains somewhat uncertain.
Publisher
Oxford University PressOxford
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