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Numerical Studies on a Second Order Explicitly Decoupled Variational Multiscale Method
Date
2015-09-18
Author
Akbas, Mine
Kaya Merdan, Songül
Rebholz, Leo
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Projection based variational multiscale (VMS) methods are a very successful technique in the numerical simulation of high Reynolds number flow problems using coarse discretizations. However, their implementation into an existing (legacy) codes can be very challenging in practice. We propose a second order variant of projection-based VMS method for non-isothermal flow problems. The method adds stabilization as a decoupled post-processing step for both velocity and temperature, and thus can be efficiently and easily used with existing codes. In this work, we propose the algorithm and give numerical results for convergence rates tests and coarse mesh simulation of Marsigli flow.
Subject Keywords
Variational multiscale (VMS)
,
Convergence rates tests
,
Coarse mesh simulation
,
Boussinesq system
,
Marsigli
URI
https://hdl.handle.net/11511/35452
DOI
https://doi.org/10.1007/978-3-319-39929-4_12
Collections
Department of Mathematics, Conference / Seminar
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M. Akbas, S. Kaya Merdan, and L. Rebholz, “Numerical Studies on a Second Order Explicitly Decoupled Variational Multiscale Method,” 2015, vol. 112, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/35452.