The University of Queensland
Hurricane Sandy 2012
(NASA satellite image)
Bathtub-like vortical flows are characterised by centripetal flow amplifying rotation.
The publications listed in this section have introduced and investigated inviscid mechanism that balances production of tangential vorticity in these flows. The mechanism compensates for possible overproduction or underproduction of the tangential vorticity by keeping the exponent a close to the compensating value of the exponent a (assuming that the stream function f ~ r^a ). The compensating value of the exponent a lays between 4/3 and 3/2, depending on conditions.
Introducing a theory for axial flame elongation in firewhirls, which is based on the 4/3-3/2 power law and agrees well with the experiments by Chuah et al (2011):
- A.Y.Klimenko and F.A.Williams, On the flame length in firewhirls with strong vorticity, Combustion and Flame, 160, 2013, 335
Theory of strong vortices and compensating regime with analysis of applicability to large atmospheric vortices such as tornadoes and hurricanes
- A.Y.Klimenko, Strong swirl approximation and atmospheric vortices J. Fluid Mech. (2014), vol. 738, pp. 268-298 .
Typos noticed in the publications are listed here
Links
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