An Extremum Solution of the Monin-Obukhov Similarity Equations

An extremum hypothesis of turbulent transport in the atmospheric surface layer is postulated. The hypothesis has led to a unique solution of Monin–Obukhov similarity equations in terms of simple expressions linking shear stress (momentum flux) and heat flux to mean wind shear and temperature gradien...

Бүрэн тодорхойлолт

Номзүйн дэлгэрэнгүй
Үндсэн зохиолчид: Wang, Jingfeng, Bras, Rafael L.
Бусад зохиолчид: Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
Формат: Өгүүллэг
Хэл сонгох:en_US
Хэвлэсэн: American Meteorological Society 2010
Онлайн хандалт:http://hdl.handle.net/1721.1/60345
https://orcid.org/0000-0003-0208-1935
Тодорхойлолт
Тойм:An extremum hypothesis of turbulent transport in the atmospheric surface layer is postulated. The hypothesis has led to a unique solution of Monin–Obukhov similarity equations in terms of simple expressions linking shear stress (momentum flux) and heat flux to mean wind shear and temperature gradient. The extremum solution is consistent with the well-known asymptotic properties of the surface layer. Validation of the extremum solution has been made by comparison to field measurements of momentum and heat fluxes. Furthermore, a modeling test of predicting surface heat fluxes using the results of this work is presented. A critical reexamination of the interpretation of the Obukhov length is given.