Fluids simulations to improve real-world performance
In the modern competitive world of product innovation, industries demand the complex simulation of their product’s real-world behavior under extreme conditions; such as vehicles wading, powertrain lubrication and critical flight maneuvers.
XFlow offers particle-based Lattice-Boltzmann technology for high fidelity Computational Fluid Dynamics (CFD) applications as a part of SIMULIA’s Fluids Simulation portfolio.
The state-of-the-art technology of XFlow enables users to address complex CFD workflows involving high frequency transient simulations with real moving geometries, complex multiphase flows, free surface flows and fluid-structure interactions.
Its automatic lattice generation and adaptive refinement capabilities minimize user inputs thereby reducing time and effort in the meshing and pre-processing phase. This enables engineers to focus the majority of their efforts on design iteration and optimization.
With XFlow’s discretization approach, surface complexity is also not a limiting factor. The underlying lattice can be controlled with a small set of parameters; the lattice is tolerant to the quality of the input geometry and adapts to the presence of moving parts.
Advanced rendering capabilities provide realistic visualization to gain deeper insight into flow and thermal performance. XFlow’s unique capabilities enable companies to reduce physical testing while making to make better design decisions faster.
Particle-based Kinematic Solver
XFlow is based on Lattice-Bolzmann technology and features a novel particle-based kinetic algorithm that has been specifically designed to perform very fast with accessible hardware.
The discretization approach in XFlow avoids the classic domain meshing process and the surface complexity is not a limiting factor anymore. The user can easily control the level of detail of the underlying lattice with a small set of parameters, the lattice is tolerant to the quality of the input geometry, and adapts to the presence of moving parts.
XFlow automatically adapts the resolved scales to the user requirements, refining the quality of the solution near the walls, dynamically adapting to the presence of strong gradients and refining the wake as the flow develops.
High Fidelity Turbulence Modeling
XFlow features the highest fidelity Wall-Modeled Large Eddy Simulation (WMLES) approach to the turbulence modeling. The underlying state-of-the-art LES, based on the Wall-Adapting Local Eddy (WALE) viscosity model, provides a consistent local eddy-viscosity and near wall behavior.
Free-surface and Multiphase Flows
XFlow enables you to easily set-up your own free-surface and multi-phase flow models through a user friendly graphical user interface.
Near-linear Scalable Performance
XFlow is fast, efficient and accessible even on a standard desktop PC. The solver is fully parallelized for multi-core technology with near-linear scalability. XFlow also perfectly integrates into your HPC environment, which opens a wide range of possibilities for the most demanding computations.
Fluid-Structure Interaction (FSI) Capabilities
XFlow includes an integrated multi-body solver which is fully coupled with the fluid solver. This solver
The following rigid body dynamics can be modeled:
• up to 6 degrees of freedom
• inputmass properties
• external forces and moments
• automatic contact detection
• friction and restitution coefficients
In addition, XFlow can also be used for co-simulation with Abaqus and Simpack:
• 2-way co-simulation with XFlow and Abaqus for large deformations FSI
• 1-way co-simulation with XFlow and Abaqus for small deformation FSI
• 2-way co-simulation between XFlow and Simpack via FMI