On the internal boundary layer related wind stress curl and its role in generating shallow lake circulations

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Title:On the internal boundary layer related wind stress curl and its role in generating shallow lake circulations
Creators:
Józsa, János; jozsa at vit dot bme dot hu; Budapest University of Technology and Economics, Department of Hydraulic and Water Resources Engineering, also MTA-BME Water Management Research Group, Műegyetem rkp 3, H-1111, Budapest, Hungary.
Journal or Publication Title:
Journal of Hydrology and Hydromechanics, 62, 1, pp. 16-23
Uncontrolled Keywords:wind-induced flow, internal boundary layer, wind stress curl, shallow lakes, lake Neusiedl

Abstract

The paper demonstrates that the wind stress curl as an external vorticity source plays an important role in shaping large scale shallow lake circulations. The analysis of purpose-oriented simultaneous wind and current measure-ments data from the Hungarian part of Lake Neusiedl reasonably fits well the internal boundary layer development theo-ry over the lake surface. A 2-D vorticity formulation of wind-induced flows is used to demonstrate mathematically the IBL-related large scale circulation generation mechanism well reflected in the measured data. Further validation of the findings is carried out by means of simple 2-D numerical flow modelling, in which details on the flow pattern besides the measurement sites could be also revealed. Wind-induced lake circulations linked to IBL development shows a novelty to be implemented in up-to-date numerical flow models.

Official URL: http://147.213.145.2/vc/vc1.asp

Title:On the internal boundary layer related wind stress curl and its role in generating shallow lake circulations
Translated title:On the internal boundary layer related wind stress curl and its role in generating shallow lake circulations
Creators:
Józsa, János; jozsa at vit dot bme dot hu; Budapest University of Technology and Economics, Department of Hydraulic and Water Resources Engineering, also MTA-BME Water Management Research Group, Műegyetem rkp 3, H-1111, Budapest, Hungary.
Uncontrolled Keywords:wind-induced flow, internal boundary layer, wind stress curl, shallow lakes, lake Neusiedl
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Mathematics, Physics and Earth Sciences > Institute of Hydrodynamics > Journal of Hydrology and Hydromechanics
Journal or Publication Title:Journal of Hydrology and Hydromechanics
Volume:62
Number:1
Page Range:pp. 16-23
ISSN:0042-790X
Publisher:Institute of Hydrology of the Slovak Academy of Sciences and the Institute of Hydrodynamics of the Academy of Sciences of the Czech Republic
Related URLs:
URLURL Type
http://avi.lib.cas.cz/node/55Publisher
ID Code:8182
Item Type:Article
Deposited On:05 Jun 2014 18:30
Last Modified:05 Jun 2014 16:30

Citation

Józsa, János (2014) On the internal boundary layer related wind stress curl and its role in generating shallow lake circulations. Journal of Hydrology and Hydromechanics, 62 (1). pp. 16-23. ISSN 0042-790X

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