Akademik Veri Yönetim Sistemi
SIAM Conference on Parallel Processing for Scientific Computing (PP26), Berlin, Almanya, 3 - 06 Mart 2026, (Yayınlanmadı)
We present a high-order implicit large-eddy simulation (ILES) approach for nearly incompressible flows based on a nodal discontinuous Galerkin (DG) discretization of the continuous Boltzmann equations. The compact, low-dissipative nature of DG is used to confine numerical dissipation within a narrow band of high wavenumbers, mimicking traditional LES behavior without explicit subgrid-scale models. The proposed approach is analyzed within the libParanumal Boltzmann solver by utilizing multi-GPU systems. Validation is provided on the Taylor–Green vortex at Reynolds numbers exhibiting a wide range of coherent turbulent scales, and on flow over a sphere to assess the method’s ability to capture laminar–turbulent transition and coexisting multiscale features. Overall, the results demonstrate the robustness of a high-order DG formulation of the Boltzmann equations for ILES of nearly incompressible flows.