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High-Order Moving Overlapping Grid Methodology in a Spectral Element Method


Abstract A moving overlapping mesh methodology that achieves spectral accuracy in space and up to second-order accuracy in time is developed for solution of unsteady incompressible flow equations in three-dimensional domains. The targeted applications are in aerospace and mechanical engineering domains and involve problems in turbomachinery, rotary aircrafts, wind turbines and others. The methodology is built within the dual-session communication framework initially developed for stationary overlapping meshes. The methodology employs semi-implicit spectral element discretization of equations in each subdomain and explicit treatment of subdomain interfaces with spectrally-accurate spatial interpolation and high-order accurate temporal extrapolation, ... (more)
Created Date 2016
Contributor Merrill, Brandon Earl (Author) / Peet, Yulia (Advisor) / Herrmann, Marcus (Committee member) / Huang, Huei-Ping (Committee member) / Kostelich, Eric (Committee member) / Calhoun, Ronald (Committee member) / Arizona State University (Publisher)
Subject Aerospace engineering / Mathematics / Physics / Computational Fluid Dynamics / Moving Meshes / Overlapping Grids / Spectral Element Method
Type Doctoral Dissertation
Extent 203 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note Doctoral Dissertation Aerospace Engineering 2016
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis