Understanding Entrainment Processes in the Atmosphere: The Role of Numerical Simulation

M van Reeuwijk; Harmen Jonker

doi:10.1007/978-3-319-63212-4_6

Understanding Entrainment Processes in the Atmosphere: The Role of Numerical Simulation

Atmospheric Remote Sensing

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

1 Citation (Scopus)

Abstract

Turbulent entrainment is a process of primary importance in the atmospheric boundary layer; however despite several decades of intense study much remains to be understood. Direct Numerical Simulation (DNS) and Large-Eddy Simulation (LES) have a tremendous potential to improve the understanding of turbulent entrainment, particularly if combined with theory. We discuss a recently developed framework for turbulent jets and plumes to decompose turbulent entrainment in various physical processes, and modify it for use in a stably stratified shear driven (nocturnal) boundary layer. The decomposition shows that inner layer processes become negligible as time progresses and that the entrainment coefficient is determined by turbulence production in the outer layer only.

Original language	English
Title of host publication	Direct and Large-Eddy Simulation X
Editors	D.G.E. Grigoriadis, B.J. Geurts, H. Kuerten, J. Fröhlich, V. Armenio
Place of Publication	Cham
Publisher	Springer
Pages	53-60
Volume	24
ISBN (Electronic)	978-3-319-63212-4
ISBN (Print)	978-3-319-63211-7
DOIs	https://doi.org/10.1007/978-3-319-63212-4_6
Publication status	Published - 2018
Event	ERCOFTAC WORKSHOP Direct and Large Eddy Simulation 10 - Limassol, Cyprus Duration: 27 May 2015 → 29 May 2015 http://dles10.org/home

Publication series

Name	ERCOFTAC Series

Conference

Conference	ERCOFTAC WORKSHOP Direct and Large Eddy Simulation 10
Abbreviated title	DLES-10
Country/Territory	Cyprus
City	Limassol
Period	27/05/15 → 29/05/15
Internet address	http://dles10.org/home

Access to Document

10.1007/978-3-319-63212-4_6

Cite this

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title = "Understanding Entrainment Processes in the Atmosphere: The Role of Numerical Simulation",

abstract = "Turbulent entrainment is a process of primary importance in the atmospheric boundary layer; however despite several decades of intense study much remains to be understood. Direct Numerical Simulation (DNS) and Large-Eddy Simulation (LES) have a tremendous potential to improve the understanding of turbulent entrainment, particularly if combined with theory. We discuss a recently developed framework for turbulent jets and plumes to decompose turbulent entrainment in various physical processes, and modify it for use in a stably stratified shear driven (nocturnal) boundary layer. The decomposition shows that inner layer processes become negligible as time progresses and that the entrainment coefficient is determined by turbulence production in the outer layer only.",

author = "{van Reeuwijk}, M and Harmen Jonker",

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language = "English",

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editor = "D.G.E. Grigoriadis and B.J. Geurts and H. Kuerten and J. Fr{\"o}hlich and V. Armenio",

booktitle = "Direct and Large-Eddy Simulation X",

note = "ERCOFTAC WORKSHOP Direct and Large Eddy Simulation 10, DLES-10 ; Conference date: 27-05-2015 Through 29-05-2015",

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van Reeuwijk, M & Jonker, H 2018, Understanding Entrainment Processes in the Atmosphere: The Role of Numerical Simulation. in DGE Grigoriadis, BJ Geurts, H Kuerten, J Fröhlich & V Armenio (eds), Direct and Large-Eddy Simulation X. vol. 24, ERCOFTAC Series, Springer, Cham, pp. 53-60 , ERCOFTAC WORKSHOP Direct and Large Eddy Simulation 10, Limassol, Cyprus, 27/05/15. https://doi.org/10.1007/978-3-319-63212-4_6

Understanding Entrainment Processes in the Atmosphere: The Role of Numerical Simulation. / van Reeuwijk, M; Jonker, Harmen.
Direct and Large-Eddy Simulation X. ed. / D.G.E. Grigoriadis; B.J. Geurts; H. Kuerten; J. Fröhlich; V. Armenio. Vol. 24 Cham: Springer, 2018. p. 53-60 (ERCOFTAC Series).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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T1 - Understanding Entrainment Processes in the Atmosphere: The Role of Numerical Simulation

AU - van Reeuwijk, M

AU - Jonker, Harmen

PY - 2018

Y1 - 2018

N2 - Turbulent entrainment is a process of primary importance in the atmospheric boundary layer; however despite several decades of intense study much remains to be understood. Direct Numerical Simulation (DNS) and Large-Eddy Simulation (LES) have a tremendous potential to improve the understanding of turbulent entrainment, particularly if combined with theory. We discuss a recently developed framework for turbulent jets and plumes to decompose turbulent entrainment in various physical processes, and modify it for use in a stably stratified shear driven (nocturnal) boundary layer. The decomposition shows that inner layer processes become negligible as time progresses and that the entrainment coefficient is determined by turbulence production in the outer layer only.

AB - Turbulent entrainment is a process of primary importance in the atmospheric boundary layer; however despite several decades of intense study much remains to be understood. Direct Numerical Simulation (DNS) and Large-Eddy Simulation (LES) have a tremendous potential to improve the understanding of turbulent entrainment, particularly if combined with theory. We discuss a recently developed framework for turbulent jets and plumes to decompose turbulent entrainment in various physical processes, and modify it for use in a stably stratified shear driven (nocturnal) boundary layer. The decomposition shows that inner layer processes become negligible as time progresses and that the entrainment coefficient is determined by turbulence production in the outer layer only.

U2 - 10.1007/978-3-319-63212-4_6

DO - 10.1007/978-3-319-63212-4_6

M3 - Conference contribution

SN - 978-3-319-63211-7

VL - 24

T3 - ERCOFTAC Series

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EP - 60

BT - Direct and Large-Eddy Simulation X

A2 - Grigoriadis, D.G.E.

A2 - Geurts, B.J.

A2 - Kuerten, H.

A2 - Fröhlich, J.

A2 - Armenio, V.

PB - Springer

CY - Cham

T2 - ERCOFTAC WORKSHOP Direct and Large Eddy Simulation 10

Y2 - 27 May 2015 through 29 May 2015

ER -

Understanding Entrainment Processes in the Atmosphere: The Role of Numerical Simulation

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