A Local Discontinuous Galerkin Level Set Reinitialization with Subcell Stabilization on Tetrahedral Meshes

Date

2023-03-03

Author

Karakuş, Ali

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

72
views

0
downloads

URI

https://hdl.handle.net/11511/102639

Conference Name

SIAM Conference on Computational Science and Engineering 2023

Collections

Department of Mechanical Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

A local discontinuous Galerkin level set reinitialization with subcell stabilization on unstructured meshes[Formula presented] Karakuş, Ali; Chalmers, N.; Warburton, T. (2022-10-01) © 2022 Elsevier LtdIn this paper we consider a level set reinitialization technique based on a high-order, local discontinuous Galerkin method on unstructured triangular meshes. A finite volume based subcell stabilization is used to improve the nonlinear stability of the method. Instead of the standard hyperbolic level set reinitialization, the flow of time Eikonal equation is discretized to construct an approximate signed distance function. Using the Eikonal equation removes the regularization parameter in...
A GPU accelerated level set reinitialization for an adaptive discontinuous Galerkin method KARAKUS, A.; WARBURTON, T.; AKSEL, MEHMET HALUK; Sert, Cüneyt (Elsevier BV, 2016-08-01) GPU accelerated high order reconstruction of signed distance function of the level set method is studied. The flow based reinitialization equation is discretized in space by using a nodal discontinuous Galerkin method on adaptive unstructured grids. Artificial diffusion with a modal decay rate based regularity estimator is used to damp out high frequency solution components near kinks, where mesh adaptivity is applied. A two rate Adams-Bashforth time integrator is developed to avoid time step restrictions r...
A four parameter Pitzer-curl type correlatıon of second virial coefficients Orbey, Hasan (Informa UK Limited, 1988-3) The Pitzer-Curl ( 1957) correlation of second virial coefficients is slightly modified to accommodate high temperature data ( TT4 4.0) of He and H2 and extended successfully to “ nonstandard” fluids as defined by Tarakad and Danner (1977), by introducing a fourth parameter per compound. The new version improves results at the high temperature limit while it gives comparable results with the previous versions presented by Pitzer and Curl ( 1957) and Tsonopoulos ( 1974) at lower temperatures. The present appr...
A low-order nonlinear amplifier model with distributed delay terms YÜZER, AHMET HAYRETTİN; Demir, Şimşek (The Scientific and Technological Research Council of Turkey, 2014-01-01) In this paper, a novel behavioral modeling technique for the characterization of memory effects of amplifiers is proposed. This characterization utilizes asymmetric intermodulation distortion (IMD)components, which are the result of a 2-tone excitation of a nonlinear amplifier. These asymmetric IMD components are represented basically by a power series, where each term in the series has its own time delay term. These time delay terms successfully justify the presence of asymmetry in the intermodulation comp...
A hybrid stress finite element for thin walled open section beams Şenay, Dilek; Oral, Süha; Department of Mechanical Engineering (2002)

Citation Formats

A. Karakuş, “A Local Discontinuous Galerkin Level Set Reinitialization with Subcell Stabilization on Tetrahedral Meshes,” presented at the SIAM Conference on Computational Science and Engineering 2023, Amsterdam, Hollanda, 2023, Accessed: 00, 2023. [Online]. Available: https://hdl.handle.net/11511/102639.