Quasi-stationary states in a circular geometry


Keetels, G.H. and Clercx, H.J.H. and Heijst, G.J.F. van (2009) Quasi-stationary states in a circular geometry. Physica D: Nonlinear phenomena, 238 (14). pp. 1129-1142. ISSN 0167-2789

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Abstract:The quasi-stationary final states of decaying two-dimensional turbulence on a circular domain, with an initial flow field containing either no or a substantial amount of angular momentum, have been investigated numerically. The production of angular momentum is almost absent for these flows on a circular domain with a no-slip wall. Its presence or absence essentially determines the character of the quasi-stationary final state. Based on a minimum-enstrophy principle a diagram is constructed that provides insight into the development of the typical late-time flow patterns on a circular domain with a no-slip wall. The quasi-stationary final states found in the present numerical study can be understood based on the predictions from the minimum-enstrophy principle.
Item Type:Article
Copyright:© 2009 Elsevier
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/80150
Official URL:https://doi.org/10.1016/j.physd.2009.03.011
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