Zobrazeno 1 - 10
of 137
pro vyhledávání: '"Dalcin, Lisandro"'
Convection-diffusion-reaction equations are a class of second-order partial differential equations widely used to model phenomena involving the change of concentration/population of one or more substances/species distributed in space. Understanding a
Externí odkaz:
http://arxiv.org/abs/2410.11669
Autor:
Rogowski, Marcin, Yeung, Brandon C. Y., Schmidt, Oliver T., Maulik, Romit, Dalcin, Lisandro, Parsani, Matteo, Mengaldo, Gianmarco
We propose a parallel (distributed) version of the spectral proper orthogonal decomposition (SPOD) technique. The parallel SPOD algorithm distributes the spatial dimension of the dataset preserving time. This approach is adopted to preserve the non-d
Externí odkaz:
http://arxiv.org/abs/2309.11808
Autor:
Hammond, Jeff R., Dalcin, Lisandro, Schnetter, Erik, Pérache, Marc, Besnard, Jean-Baptiste, Brown, Jed, Gadeschi, Gonzalo Brito, Schuchart, Joseph, Byrne, Simon, Zhou, Hui
MPI is the most widely used interface for high-performance computing (HPC) workloads. Its success lies in its embrace of libraries and ability to evolve while maintaining backward compatibility for older codes, enabling them to run on new architectur
Externí odkaz:
http://arxiv.org/abs/2308.11214
Autor:
Ranocha, Hendrik, Winters, Andrew R., Castro, Hugo Guillermo, Dalcin, Lisandro, Schlottke-Lakemper, Michael, Gassner, Gregor J., Parsani, Matteo
Publikováno v:
Communications on Applied Mathematics and Computation, 2023
We study temporal step size control of explicit Runge-Kutta methods for compressible computational fluid dynamics (CFD), including the Navier-Stokes equations and hyperbolic systems of conservation laws such as the Euler equations. We demonstrate tha
Externí odkaz:
http://arxiv.org/abs/2209.07037
Autor:
Rogowski, Marcin, Yeung, Brandon C.Y., Schmidt, Oliver T., Maulik, Romit, Dalcin, Lisandro, Parsani, Matteo, Mengaldo, Gianmarco
Publikováno v:
In Computer Physics Communications September 2024 302
Publikováno v:
Partial Differ. Equ. Appl. 2, 77 (2021)
Nonlinear entropy stability analysis is used to derive entropy stable no-slip wall boundary conditions for the Eulerian model proposed by Sv\"{a}rd (Physica A: Statistical Mechanics and its Applications, 2018). and its spatial discretization based on
Externí odkaz:
http://arxiv.org/abs/2110.10507
Publikováno v:
Communications on Applied Mathematics and Computation, 2021
We develop error-control based time integration algorithms for compressible fluid dynamics (CFD) applications and show that they are efficient and robust in both the accuracy-limited and stability-limited regime. Focusing on discontinuous spectral el
Externí odkaz:
http://arxiv.org/abs/2104.06836
Publikováno v:
Computers and Mathematics with Applications, 2020
Recently, relaxation methods have been developed to guarantee the preservation of a single global functional of the solution of an ordinary differential equation. Here, we generalize this approach to guarantee local entropy inequalities for finitely
Externí odkaz:
http://arxiv.org/abs/2003.08831
Autor:
Rojas, Diego, Boukharfane, Radouan, Dalcin, Lisandro, Fernandez, David C. Del Rey, Ranocha, Hendrik, Keyes, David E., Parsani, Matteo
Publikováno v:
Journal of Computational Physics, 2020
In computational fluid dynamics, the demand for increasingly multidisciplinary reliable simulations, for both analysis and design optimization purposes, requires transformational advances in individual components of future solvers. At the algorithmic
Externí odkaz:
http://arxiv.org/abs/1911.10966
Autor:
Nolasco, Irving Reyna, Dalcin, Lisandro, Fernandez, David C. Del Rey, Zampini, Stefano, Parsani, Matteo
Computational fluid dynamics and aerodynamics, which complement more expensive empirical approaches, are critical for developing aerospace vehicles. During the past three decades, computational aerodynamics capability has improved remarkably, followi
Externí odkaz:
http://arxiv.org/abs/1911.03682