NDLI: Turbulence structure and coherent vortices in open-channel flows with wind-induced water waves

Content Provider	Springer Nature Link
Author	Sanjou, Michio Nezu, Iehisa
Copyright Year	2011
Abstract	When wind-induced water waves appear over the free-surface flows such as natural rivers and artificial channels, large amounts of oxygen gas and heat are transported toward the river bed through the interface between water and wind layers. In contrast, a bed region is a kind of turbulent boundary layer, in which turbulence generation and its transport is promoted by the production of bed shear stress. In particular, coherent hairpin vortices, together with strong ejection events toward the outer part of the layer, promote mass and momentum exchanges between the inner and outer layers. It is inferred that such a near-bed turbulence may be influenced significantly by these air–water interfacial fluctuations accompanied with free-surface velocity shear and wind-induced water waves. However, these wind effects on the wall-turbulence structure are less understood. To address these exciting and challenging topics, we conducted particle imagery velocimetry (PIV) measurements in open-channel flows combined with air flows, and furthermore the present measured data allows us to investigate the effects of air–water interactions on turbulence structure through the whole depth region.
Starting Page	113
Ending Page	131
Page Count	19
File Format	PDF
ISSN	15677419
Journal	Environmental Fluid Mechanics
Volume Number	11
Issue Number	2
e-ISSN	15731510
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-02-10
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Turbulence structure Coherent motion Hairpin vortex Wind-induced water waves Meteorology/Climatology Mechanics Hydrogeology Oceanography Environmental Physics
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Water Science and Technology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Coherent structures and their interactions in smooth open channel flows

Generation of internal waves by sheared turbulence: experiments

Turbulence structure and fluid–particle interaction in sediment-laden flows over developing sand dunes

A mesoscale vortex in a small stratified lake

Mass Transport in Vegetated Shear Flows

Design and Testing of a Turbulence Probe for Harsh Flows

Do Tidal-Channel Turbulence Measurements Support k−5/3?

The Structure of the Shear Layer in Flows over Rigid and Flexible Canopies

Transport of Pollutant in Open Channel with Short Waves

Turbulence structure and coherent vortices in open-channel flows with wind-induced water waves

Similar Documents

Coherent structures and their interactions in smooth open channel flows

Generation of internal waves by sheared turbulence: experiments

Turbulence structure and fluid–particle interaction in sediment-laden flows over developing sand dunes

A mesoscale vortex in a small stratified lake

Mass Transport in Vegetated Shear Flows

Design and Testing of a Turbulence Probe for Harsh Flows

Do Tidal-Channel Turbulence Measurements Support k−5/3?

The Structure of the Shear Layer in Flows over Rigid and Flexible Canopies

Transport of Pollutant in Open Channel with Short Waves

Turbulence structure and coherent vortices in open-channel flows with wind-induced water waves