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Stratified horizontal convection

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Title: Stratified horizontal convection
Authors: Noto, Daisuke Browse this author
Ulloa, Hugo N. Browse this author
Yanagisawa, Takatoshi Browse this author
Tasaka, Yuji Browse this author →KAKEN DB
Keywords: ocean circulation
stratified flows
Benard convection
Issue Date: 10-Sep-2023
Publisher: Cambridge University Press
Journal Title: Journal of fluid mechanics
Volume: 970
Start Page: A21
Publisher DOI: 10.1017/jfm.2023.625
Abstract: Surface differential heating on a stably stratified fluid body drives an overturning circulation confined to the upper fluid region - here coined stratified horizontal convection (SHC). In this manuscript, we investigate the dynamics of SHC via laboratory experiments, exploring local and global flow properties. By considering the available potential energy of the system, we derive a unique length scale of SHC and introduce the Peclet number Pe that captures both the stabilising effect of stratification and the destabilising effect of the baroclinic adjustment. We found that Pe characterises local and global flow properties, including the fluid transport of the overturning circulation, the available mechanical energy and the flow dimensionality. Our study provides insights into the fluid dynamics of stratified environments that experience horizontal convection, such as lakes, oceans and atmospheres.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 田坂 裕司

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