Pushing the Boundaries of Simulation

As companies strive to produce innovative and higher-quality products, they cannot ignore their key business challenges: improved time to market, minimized warranty costs and/or reduced engineering costs. These challenges drive CFD engineers to push the boundaries of simulation in considering the effects of multiple physics on their product designs.

CFD engineers routinely push the boundaries of simulation while designing innovative products that operate in complex multiphysics environments. Engineers must robustly solve complex fluid-structure interaction problems, such as air foil flutter, in-cylinder engine modeling and fuel tank sloshing. By incorporating multiphysics simulation into their design processes, CFD engineers reduce error margins, increase product reliability, and ultimately create more innovative product designs in less time.

Simulated flow inside internal combustion engine

Flow inside internal combustion engine simulated using ANSYS FLUENT with rigid-body fluid−structure interaction to model the valve motion

The ANSYS portfolio of high-fidelity simulation tools enable CFD engineers to accurately predict the real-world multiphysics behavior of industrial designs. Applications such as flow-induced vibration and thermal and pressure stresses induced by fluid flow are all readily solved using this multiphysics simulation technology. ANSYS provides the most comprehensive set of solver technology for all physics disciplines — structural mechanics, heat transfer, fluid flow and electromagnetics, a combination capable of solving industry’s most complex engineering challenges.

Manifold 1 Manifold 2

Exhaust manifold, temperatures (left) from a conjugate heat transfer model solved with ANSYS FLUENT mapped to an ANSYS Mechanical thermal−stress (right) solution using the ANSYS Workbench platform.

Superior solver technology is only one part of compressing product design cycles and reducing engineering costs. ANSYS enables the interoperability of multiple physics within the ANSYS Workbench platform. This tool is a powerful multi-domain simulation environment that harnesses core solvers from ANSYS, enables their interoperability, and provides common tools for interfacing with CAD, repairing dirty geometry, creating meshes and post-processing results. An innovative project schematic ties together the entire simulation process, guiding the user through complex multiphysics simulation with drag-and-drop simplicity.

Key features of ANSYS fluid−structure interaction include:

  • Easy intuitive setup of problems
  • Automated load mapping between CFD and structural simulations
  • One-way, two-way and rigid body motion fluidstructure interaction
  • Support for dissimilar mesh interface between CFD and structural models
  • Ability to include parametric simulation and optimization for FSI
  • Features that enable collaboration between CFD and structural experts


ANSYS Workbench project schematic

The ANSYS Workbench project schematic allows automated parametric analyses — such as fluid−structure interaction for a wind turbine — to be set up with drag-and-drop simplicity.

Companies trust ANSYS to deliver multiphysics solutions that provide the high-fidelity simulations required to meet the challenges of today’s demanding product design processes. ANSYS multiphysics solutions offer a portfolio of software that provides engineers with powerful simulation tools for solving industry’s toughest multiphysics challenges.

Numerical simulation of two-way fluid-structure interaction

Numerical simulation of two-way fluid−structure interaction of reed valves in miniaturized compressor under high-frequency conditions.
Courtesy Embraco.