Automotive

External aerodynamics

The virtual wind tunnel module available within XFlow makes it possible to model full-scale simulations, and facilities the setup in external aerodinamics problems. XFlow is able to compute aerodynamic loads over complex models, including the effect of rotation wheels and moving parts. It is possible to analyze overtaking or dynamic systems such as the suspension of the vehicle.

Aeroacoustics

Flow induced noise experienced by vehicle occupants can be a consequence of different flow phenomena generated by exposed parts such as side mirrors, A-pilars, tires and underhood details. XFlow fluid solver deals physically with sound pressure waves, and the Large Eddy Simulation models available allow the direct computation of the fluctuating structures present in the flow.

Free surface

XFlow is also able to simulate free surface problems such as the refueling process, sloshing in the fuel tank, splashing of the wheels on a wet road or driving through water.

Discrete phase model

In addition to solving the transport equations for the continuous phase, XFlow allows the user to simulate a discrete second phase in a Lagrangian frame of reference. This second phase consists of spherical particles (which may represent droplets, hail, dust, bubbles, etc) dispersed in the continuous phase.

Internal air conditioning

The XFlow thermal solver can be applied to the simulation of the ventilation, heating, and air conditioning (HVAC) system in the vehicle cabin to achieve thermal comfort. Fans are modeled either as a rotating part or as a surface boundary condition, and filters as porous media. It is possible to analyze the interior airflow, measure temperature at different locations, and even calculate the passive scalar transport of substances.

Thermal damage

The thermal solver together with the radiation model allows the user to compute the heat flux and temperature in the underhood and underbody regions coupled to the aerodynamics of the vehicle.