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Technical papers


Flow within a duct strongly affects the propagation of acoustic waves. This effect must be addressed by the vibroacoustic modeling of duct systems that are subject to flow. The effective sound propagation speed in a...

CFD, Vibro-Acoustics

State of the art computer aided coupled multiphysics simulation tools can be advantageous in the understanding and design of industrial processes. This paper presents such a tool for electric steelmaking,...

STEELMAKING, CASTING, METALLURGY, INDUCTION HEATING, MAGNETIC STIRRING, SURFACE HARDENING, FINITE ELEMENTS, EDGE ELEMENTS, COUPLED MULTIPHYSICS, COMPUTER SIMULATION
Casting, CFD

Regardless of the specific discretisation framework, the discrete incompressible Navier-Stokes equations present themselves in the form of a non-linear, saddle-point Oseentype system. Traditional CFD codes typically...

Oseen Preconditioners, Adjoint Navier-Stokes, Block-Coupled, SIMPLEC, V-Coupled, Augmented Lagrangian.

Many actual muffler systems with complex geometry have large temperature variations and large variations in the flow field under normal operating conditions. Often perforated regions and other complex design elements...

CFD flow, complex mufflers, thermal and flow effects, CFD VA coupling
CFD, Vibro-Acoustics

Mixed Virtual Elements (MVE) is an innovative class of discretization schemes allowing solution of PDEs on virtually any mesh; such schemes stem from the idea of building discrete operators mimicking certain key...


Models to represent in position situations based upon uniform pressure assumptions are well established and have been used extensively in the automotive industry for more than 15 years. More recently, in the...

FPM, CFD
CFD, Virtual Performance

Wind noise has become in recent years a significant contributor to perceived sound inside automobiles. Many methods are nowadays available to couple wind tunnel or CFD (Computational Fluid Dynamics) data to a full...

CFD, Vibro-Acoustics

A multi-physics modelling approach for simulating the plastic encapsulation of high density IC packages is presented. This modelling approach is used to predict the two-phase flow of a curing resin, the heat transfer...

Multi-Physics, Multi-Scale, Fluid-Structure Interaction, Wire Sweep, High Density IC Packaging, Plastic Encapsulation, PBGA, ACE+

Cooling and heat protection of the engine compartment significantly impact the performance of combat vehicles. An increased heat load occurs during soak-back after engine shut down, where the fans are shut down. Heat...


In certain applications, different regions of the computational domain experience flow conditions/physics that are so different that it is very difficult for a single solver to produce sufficiently accurate results...

Hypersonic, Re-entry, High Speed Compressible Flow, Shock Wave, Aerodynamic Heating, Conjugate Heat Transfer, Conduction, Free Convection, Radiation, FASTRAN, ACE+

When working with lightweight structures it is fascinating to observe how their inherent beauty seems to rather spontaneously ‘appear’ – usually after a laborious process of definition and optimisation, not by a...

Fluid Structure Interaction, FSI, LISA, PAM-Crash, PAM-Flow, naturally turbulent wind, NatWind