A Comparison of Three Error Indicators for Adaptive High-Order Large Eddy Simulation
- 3 January 2022
- conference paper
- Published by American Institute of Aeronautics and Astronautics (AIAA)
Abstract
View Video Presentation: https://doi.org/10.2514/6.2022-1201.vid In this paper, we use a discontinuous high-order method to evaluate three error indicators specifically designed for mesh adaptation in large eddy simulations. The indicators are based on different physical and numerical arguments. The first indicator is based on the unsteady residual. The second indicator is based on a local smoothness indicator. The third indicator is based on an estimate of the small scale turbulent kinetic energy. We test the three error indicators to drive autonomous mesh refinement on implicit large eddy simulations, deploying the error indicators on the widely used benchmark problem T106c. We compare the adaptively meshed results against a DNS simulation to evaluate the effectiveness of the error indicators in reducing solution errors in LES.Keywords
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