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) |
|---|---|
| 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 |
|---|
Conference
| Conference | AIAA Aviation 2019 Forum |
|---|---|
| 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.