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Structure and Proper Orthogonal Decomposition in Simulations of Wall-Bounded Turbulent Shear Flows with Canonical Geometries


Abstract Structural features of canonical wall-bounded turbulent flows are described using several techniques, including proper orthogonal decomposition (POD). The canonical wall-bounded turbulent flows of channels, pipes, and flat-plate boundary layers include physics important to a wide variety of practical fluid flows with a minimum of geometric complications. Yet, significant questions remain for their turbulent motions' form, organization to compose very long motions, and relationship to vortical structures. POD extracts highly energetic structures from flow fields and is one tool to further understand the turbulence physics. A variety of direct numerical simulations provide velocity fields suitable for detailed analysis. Since POD modes re... (more)
Created Date 2012
Contributor Baltzer, Jon Ronald (Author) / Adrian, Ronald J (Advisor) / Calhoun, Ronald (Committee member) / Gelb, Anne (Committee member) / Herrmann, Marcus (Committee member) / Squires, Kyle D (Committee member) / Arizona State University (Publisher)
Subject Mechanical engineering / boundary layers / proper orthogonal decomposition / turbulence
Type Doctoral Dissertation
Extent 459 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note Ph.D. Mechanical Engineering 2012
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis