Abstract
We present a preliminary implementation of a Line-Based Discontinuous Nodal Galerkin discretization method (due to Persson, 2013) to solve the compressible Navier-Stokes equations. The scheme is based on applying the one-dimensional nodal discontinuous Galerkin (DG) method on lines in each coordinate direction (using hexahedral elements) instead of solving a three dimensional nodal discontinuous problem. The Line-DG method significantly increases the sparsity of the Jacobian matrices and reduces the nodal connectivity, enabling higher performance. The Minimal Dissipation LDG (MD-LDG) method is used to evaluate the viscous fluxes in the Navier Stokes equations. Some validation cases are presented.
Original language | English (US) |
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Title of host publication | AIAA Aviation 2019 Forum |
Publisher | American Institute of Aeronautics and Astronautics Inc, AIAA |
Pages | 1-10 |
Number of pages | 10 |
ISBN (Print) | 9781624105890 |
DOIs | |
State | Published - 2019 |
Externally published | Yes |
Event | AIAA Aviation 2019 Forum - Dallas, United States Duration: Jun 17 2019 → Jun 21 2019 |
Publication series
Name | AIAA Aviation 2019 Forum |
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Conference
Conference | AIAA Aviation 2019 Forum |
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Country/Territory | United States |
City | Dallas |
Period | 6/17/19 → 6/21/19 |
Bibliographical note
Publisher Copyright:© 2019, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.