51 citations · 67 across the 10 of their papers we have counts for
10 papers
An efficient eigenvalue bounding method: CFL condition revisited
F. Xavier Trias, Xavier Álvarez-Farré, Àdel Alsalti-Baldellou +2
Direct and large-eddy simulations of turbulence are often solved using explicit temporal schemes. However, this imposes very small time-steps because the eigenvalues of the (linear…
A rational length scale for large-eddy simulation of turbulence on anisotropic grids
F. Xavier Trias, Jesús Ruano, Alexey Duben +1
Due to the prohibitive cost of resolving all relevant scales, direct numerical simulations of turbulence remain unfeasible for most real-world applications. Consequently, dynamical…
On the Reynolds-number scaling of Poisson solver complexity
F. Xavier Trias, Àdel Alsalti-Baldellou, Assensi Oliva
We aim to answer the following question: is the complexity of numerically solving the Poisson equation increasing or decreasing for very large simulations of incompressible flows?…
Minimum-dissipation model and symmetry-preserving discretization for scalar transport in a turbulent flow
Jing Sun, F. Xavier Trias, Roel Verstappen
This work extends the minimum-dissipation model of large-eddy simulation and symmetry-preserving discretization to account for active or passive scalar transport and complex physic…
Quantifying the checkerboard problem to reduce numerical dissipation
Johannes Arend Hopman, Daniel Santos, Àdel Alsalti-Baldellou +2
This work provides a comprehensive exploration of various methods in solving incompressible flows using a projection method, and their relation to the occurrence and management of…
Energy-consistent discretization of viscous dissipation with application to natural convection flow
Benjamin Sanderse, Francesc Xavier Trias
A new energy-consistent discretization of the viscous dissipation function in incompressible flows is proposed. It is implied by choosing a discretization of the diffusive terms an…
A general method to compute numerical dispersion errors and its application to stretched meshes
J. Ruano, A. Baez Vidal, F. X. Trias +1
This article presents a new spectral analysis approach for dispersion error and a methodology to numerically evaluate it. In practice, this new analysis allows the numerical study…
A new subgrid characteristic length for turbulence simulations on anisotropic grids
F. X. Trias, A. Gorobets, M. H. Silvis +2
Direct numerical simulations of the incompressible Navier-Stokes equations are not feasible yet for most practical turbulent flows. Therefore, dynamically less complex mathematical…
Particulate immersed boundary method for complex fluid-particle interaction problems with heat transfer
Hao Zhang, Haizhuan Yuan, F. Xavier Trias +3
In our recent work [H. Zhang, F.X. Trias, A. Oliva, D. Yang, Y. Tan, Y. Sheng. PIBM: Particulate immersed boundary method for fluid-particle interaction problems. Powder Technology…
PIBM: Particulate immersed boundary method for fluid-particle interaction problems
Hao Zhang, F. Xavier Trias, Assensi Oliva +4
It is well known that the number of particles should be scaled up to enable industrial scale simulation. The calculations are more computationally intensive when the motion of the…