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Symmetry and asymmetry of water ages in a one-dimensional flow
Deleersnijder, E.; Delhez, E.J.M. (2004). Symmetry and asymmetry of water ages in a one-dimensional flow, in: Delhez, E.J.M. et al. Tracer methods in geophysical fluid dynamics. Journal of Marine Systems, 48(Special Issue 1-4): pp. 61-66. dx.doi.org/10.1016/j.jmarsys.2003.07.002
In: Delhez, E.J.M. et al. (2004). Tracer methods in geophysical fluid dynamics. Journal of Marine Systems, 48(Special Issue 1-4). Elsevier: Amsterdam. 1-194 pp., meer
In: Journal of Marine Systems. Elsevier: Tokyo; Oxford; New York; Amsterdam. ISSN 0924-7963; e-ISSN 1879-1573, meer
Peer reviewed article  

Beschikbaar in  Auteurs 
    VLIZ: Open Repository 114371 [ OMA ]
Documenttype: Congresbijdrage

Trefwoorden
    Age
    Aging
    Tracers
    Marien
Author keywords
    age; age of seawater; ageing; tracer

Auteurs  Top 
  • Deleersnijder, E., meer
  • Delhez, E.J.M., meer

Abstract
    Hall and Haine [J. Mar. Syst., in press] briefly addressed the problem of estimating the age of irreducible fluid elements or water parcels in a one-dimensional flow with constant velocity and diffusivity. Herein further developments are achieved on this subject. The age of every water parcel is set to zero at the moment it passes through the point x=0, where x is an appropriate space coordinate. As time progresses, the age of the water is seen to increase unboundedly upstream of the point x=0, and tend to the steady-state value |x/u| downstream of the point x=0, where u is the water velocity. By contrast, the age of the water parcels that have touched at least once the point x=0 is symmetric with respect to the point x=0 is smaller than the water age at any time and position, and tends to |x/u| as time progresses. Asymptotic expansions are derived for large times.

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