Physical properties of turbulent benthic boundary layers generated by internal waves

Charles Lemckert, Jason Antenucci, Angelo Saggio, Jorg Imberger

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

Physical properties of active turbulent benthic boundary layers (TBBL) generated by basin scale internal waves were studied within a Northern hemisphere thermally stratified lake. A microstructure profiler was used to measure the nature of the turbulence within the TBBLs while a series of thermistor chains were used to monitor the thermal structure of the lake. It was observed that a wind-driven anticlockwise diurnal-period vertical mode one Kelvin wave generated large scale motions within the water column, and that the interactions between this wave and the sloping lakebed induced TBBLs. A simple model, based on potential energy change and boundary shearing, was shown to describe the mean TBBL thickness.

Original languageEnglish
Pages (from-to)58-69
Number of pages12
JournalJournal of Hydraulic Engineering
Volume130
Issue number1
DOIs
Publication statusPublished - Jan 2004
Externally publishedYes

Fingerprint

turbulent boundary layer
benthic boundary layer
internal wave
Boundary layers
Physical properties
physical property
Lakes
Kelvin wave
lake
profiler
thermal structure
potential energy
Northern Hemisphere
microstructure
Thermistors
water column
turbulence
Potential energy
Shearing
Turbulence

Cite this

Lemckert, Charles ; Antenucci, Jason ; Saggio, Angelo ; Imberger, Jorg. / Physical properties of turbulent benthic boundary layers generated by internal waves. In: Journal of Hydraulic Engineering. 2004 ; Vol. 130, No. 1. pp. 58-69.
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Physical properties of turbulent benthic boundary layers generated by internal waves. / Lemckert, Charles; Antenucci, Jason; Saggio, Angelo; Imberger, Jorg.

In: Journal of Hydraulic Engineering, Vol. 130, No. 1, 01.2004, p. 58-69.

Research output: Contribution to journalArticle

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