On the interaction of buoyant plumes and gaps with canopy mixing layers

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Abstract/Contents

Abstract
Canopy mixing layers, as found in many environmental systems, quite significantly alter the local flow and turbulence fields. They also give rise to coherent structures that have a strong influence on the mixing and transport of momentum, turbulence, mass and heat in the system. Through experimental work with model vegetative canopies, this dissertation investigated systems in which the canopy mixing layers compete with other non-negligible processes. The first two topics are on canopies that are interrupted by gaps and trailing edges. The competing processes that alter the canopy mixing layer in gaps and edges are those related to flow expansion, reattachment, wake development, and boundary layer dynamics. The third topic looks at the interaction between canopy mixing layers and plume dynamics. The goal was to assess how canopy induced turbulence can impact the trajectory and behavior of hot buoyant plumes. All of these competing processes were studied to better understand the role of canopy dynamics in various environmental settings, most notably in wildfire spread. We connected our experimental work to looking into how mixing layer dynamics may alter the dynamics that is observed within fuel breaks, as well as wildfire plumes.

Description

Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource.
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2022; ©2022
Publication date 2022; 2022
Issuance monographic
Language English

Creators/Contributors

Author Chung, Hayoon
Degree supervisor Koseff, Jeffrey Russell
Thesis advisor Koseff, Jeffrey Russell
Thesis advisor Fringer, Oliver B. (Oliver Bartlett)
Thesis advisor Ouellette, Nicholas (Nicholas Testroet), 1980-
Degree committee member Fringer, Oliver B. (Oliver Bartlett)
Degree committee member Ouellette, Nicholas (Nicholas Testroet), 1980-
Associated with Stanford University, Civil & Environmental Engineering Department

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Hayoon Chung.
Note Submitted to the Civil & Environmental Engineering Department.
Thesis Thesis Ph.D. Stanford University 2022.
Location https://purl.stanford.edu/kc650nn9551

Access conditions

Copyright
© 2022 by Hayoon Chung
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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