Zobrazeno 1 - 10
of 151
pro vyhledávání: '"Tomás Chacón"'
Autor:
Juan Valverde, Jorge Galan-Vioque, Juan Carlos Herruzo, Samuele Rubino, Tomás Chacón, Carlos Nuñez Fernandez
Publikováno v:
SolarPACES Conference Proceedings, Vol 1 (2023)
We present a Reduced Order Method approach to the heat exchange and loses in a simulated 3D cavity of CSP tower receivers. We validate the method in a 2D Boussinesq model problem for natural convection monitoring temperature, pressure and velocity fo
Externí odkaz:
https://doaj.org/article/dfdbb0cb80854bcb9cdb2bfd537138b1
The evolve-filter (EF) model is a filter-based numerical stabilization for under-resolved convection-dominated flows. EF is a simple, modular, and effective strategy for both full-order models (FOMs) and reduced-order models (ROMs). It is well-known,
Externí odkaz:
http://arxiv.org/abs/2411.13957
Publikováno v:
Frontiers in Physics, Vol 10 (2022)
In this study, we obtained low-rank approximations for the solution of parametric non-symmetric elliptic partial differential equations. We proved the existence of optimal approximation subspaces that minimize the error between the solution and an ap
Externí odkaz:
https://doaj.org/article/aeb50217cfa34c0c9d136247115d655f
Publikováno v:
Journal of Mathematics in Industry, Vol 8, Iss 1, Pp 1-20 (2018)
Abstract In this work, we study the performance of some local projection-based solvers in the Large Eddy Simulation (LES) of laminar and turbulent flows governed by the incompressible Navier–Stokes Equations (NSE). On one side, we focus on a high-o
Externí odkaz:
https://doaj.org/article/5adcaff3a9734f7c8cee92c32a0ed7d1
We present in this paper the results of a research motivated by the need of a very fast solution of thermal flow in solar receivers. These receivers are composed by a large number of parallel pipes with the same geometry. We have introduced a reduced
Externí odkaz:
http://arxiv.org/abs/2305.19199
Autor:
Moreno, Alejandro Bandera, García, Cristina Caravaca, Rebollo, Tomás Chacón, Ávila, Enrique Delgado, Mármol, Macarena Gómez
In this work, we introduce an a posteriori error indicator for the reduced basis modelling of turbulent flows. It is based upon the $k^{-5/3}$ Kolmogorov turbulence theory, thus it may be applied to any numerical discretisation of LES turbulence mode
Externí odkaz:
http://arxiv.org/abs/2305.04598
In this article, we address the solution of advection-dominated flow problems by stabilised methods, by means of least-squares computed stabilised coefficients. As main methodological tool, we introduce a data-driven off-line/on-line strategy to comp
Externí odkaz:
http://arxiv.org/abs/2207.13778
This article presents error bounds for a velocity-pressure segregated POD reduced order model discretization of the Navier-Stokes equations. The stability is proven in L infinity (L 2 ) and energy norms for velocity, with bounds that do not depend on
Externí odkaz:
http://arxiv.org/abs/2207.13122
In this work, we introduce a Variational Multi-Scale (VMS) method for the numerical approximation of parabolic problems, where sub-grid scales are approximated from the eigenpairs of associated elliptic operator. The abstract method is particularized
Externí odkaz:
http://arxiv.org/abs/2207.10449