| DOI: | 10.1002/grl.50163
|
| 论文题名: | Sea surface drag and the role of spray |
| 作者: | Richter D.H.; Sullivan P.P.
|
| 刊名: | Geophysical Research Letters
|
| ISSN: | 0094-9341
|
| EISSN: | 1944-9072
|
| 出版年: | 2013
|
| 卷: | 40, 期:3 | | 起始页码: | 656
|
| 结束页码: | 660
|
| 语种: | 英语
|
| 英文关键词: | sea spray
; surface drag
; turbulence
|
| Scopus关键词: | Drag
; Momentum
; Surface waters
; Turbulence
; Turbulent flow
; Atmospheric stratification
; Atmospheric surface layers
; Density stratification
; Dispersed phase models
; Lagrangian particle tracking
; Particle concentrations
; Sea spray
; Turbulent Couette flows
; Atmospheric thermodynamics
; air-sea interaction
; Couette flow
; drag coefficient
; droplet
; Lagrangian analysis
; momentum
; sea surface
; spray
; turbulence
; wind velocity
|
| 英文摘要: | Motivated by the possible effects of spray on the drag felt by the ocean surface in high winds, we use direct numerical simulation coupled with Lagrangian particle tracking to investigate how suspended inertial particles alter momentum flux in an idealized turbulent flow. Turbulent Couette flow is used for this purpose since the momentum flux profile is constant across the domain height; a characteristic similar to the constant-flux layer in the atmospheric surface layer. The simulations show that when inertial particles are introduced into a turbulent flow, they carry a portion of the total vertical momentum flux, and that this contribution can be significant when the particle concentration is sufficiently large. The numerical setup is also used to evaluate a dispersed phase model that treats spray effects as equivalent to an increase in stable atmospheric stratification. Our simulations suggest that in the range of droplet sizes typically found near the air-sea interface, particle inertial effects dominate any particle-induced stratification effects. Key Points Sea spray potentially carries a significant fraction of the total momentum flux Sea spray can lead to underestimates of surface drag coefficient Effects of sea spray are difficult to cast as changes in density stratification ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84878193686&doi=10.1002%2fgrl.50163&partnerID=40&md5=232fc107a0c345e109a42708abffa5ff
|
| Citation statistics: |
|
| 资源类型: | 期刊论文
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6605
|
| Appears in Collections: | 气候减缓与适应
|
|
There are no files associated with this item.
|
|
作者单位: | National Center for Atmospheric Research, PO Box 3000, Boulder, CO 80307, United States
|
| Recommended Citation: | |
Richter D.H.,Sullivan P.P.. Sea surface drag and the role of spray[J]. Geophysical Research Letters,2013-01-01,40(3).
|
|
|