Surface age of surface renewal in turbulent interfacial transport

Details Surface age of surface renewal in turbulent interfacial transport Surface age of surface renewal in turbulent interfacial transport

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3610605k&link_type=abstract

Geophysical Research Letters, Volume 36, Issue 10, CiteID L10605

Physics

1

Oceanography: Physical: Air/Sea Interactions (0312, 3339), Oceanography: General: Numerical Modeling (0545, 0560), Oceanography: Physical: Fine Structure And Microstructure, Oceanography: Physical: Turbulence, Diffusion, And Mixing Processes (4490), Atmospheric Composition And Structure: Air/Sea Constituent Fluxes (3339, 4504)

Scientific paper

We use direct numerical simulation to study characteristics of interfacial transfer of gas and heat in free-surface turbulence. Using Lagrangian tracing, we are able to directly quantify surface age of surface renewal for the first time. The physical meaning of surface renewal and various representations of surface age, including the use of heat as a proxy, are discussed. Results show that the Higbie penetration theory and the Danckwerts random surface renewal model are inappropriate for gas transfer.

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