Browsing by Author "Nogueira, Xesús"

Browsing by Author "Nogueira, Xesús"

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  • A reduced-dissipation WENO scheme with automatic dissipation adjustment 
    Fernández-Fidalgo, Javier; Ramírez, Luis; Tsoutsanis, Panagiotis; Colominas, Ignasi; Nogueira, Xesús (Elsevier, 2020-08-04)
    In this paper, we propose a novel modification to the WENO-family schemes to reduce its intrinsic dissipation. In this work, we focus on the WENO5 scheme, which is rewritten in terms of a central plus a dissipative part, ...
  • A short note on a 3D spectral analysis for turbulent flows on unstructured meshes 
    Tsoutsanis, Panagiotis; Nogueira, Xesús; Fu, Lin (Elsevier, 2022-11-25)
    We propose two techniques for computing the energy spectra for 3D unstructured meshes that are consistent across different element types. These techniques can be particularly useful when assessing the dissipation characteristics ...
  • UCNS3D: An open-source high-order finite-volume unstructured CFD solver 
    Antoniadis, Antonis F.; Drikakis, Dimitris; Farmakis, Pericles S.; Fu, Lin; Kokkinakis, Ioannis; Nogueira, Xesús; Silva, Paulo A. S. F.; Skote, Martin; Titarev, Vladimir; Tsoutsanis, Panagiotis (Elsevier, 2022-06-21)
    UCNS3D is an open-source computational solver for compressible flows on unstructured meshes. State-of-the-art high-order methods and their associated benefits can now be implemented for industrial-scale CFD problems due ...
  • WENO schemes on unstructured meshes using a relaxed a posteriori MOOD limiting approach 
    Farmakis, Pericles S.; Tsoutsanis, Panagiotis; Nogueira, Xesús (Elsevier, 2020-02-24)
    In this paper a relaxed formulation of the a posteriori Multi-dimensional Optimal Order Detection (MOOD) limiting approach is introduced for weighted essentially non-oscillatory (WENO) finite volume schemes on unstructured ...