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Land Transport

Engine Aerodynamics


The aim of the project was to limit the aerodynamic forces on the front and rear pantograph.


During this study, tests at several forward speeds were carried out, as well as tests with several designs.


The design for optimal cabin aerodynamics was found, and the limit forces were respected. Our customer benefited from a great reactivity in the modifications to be made, a respect of the tight deadlines, and flexibility in the realization.

Aerodynamics of a cable car cabin


The objective of this study was to analyze the behavior of a cable car cabin for several wind incidences.


Firstly, it was necessary to model the different parts of the cable car (cabin, hanger, trolley). After that, CFD calculations could be performed for different wind impacts. The aerodynamic forces and moments and the drag coefficient were derived for the different parts of the rope-way.


The study made it possible to characterize the flow around the cable car, and to highlight areas of recirculation. It also helped to map the wind pressure fields on the different parts of the cable car.

Analysis of a Rotating Telescope


The goal of this project was to validate the design of a rotating telescope used to clean an automobile headlight.


The study was based on a modeling of the area near the lighthouse, and the implementation of a sliding mesh. The Simulation was carried out in two-phase and unsteady by integrating the movement of the telescope.



The simulation made it possible to characterize the shape of the water table ejected by the telescope. It also identified areas of water impact on the lighthouse and tested the correct cleaning of lighting areas.

Blowing on an Engine Cylinder Head


The objective of this project was to adapt the space-time cooling of an engine cylinder head.


The study began with the meshing of the fluid and solid domains. The simulation part was then started. It consisted of transient calculations for different blower speeds.


Numerical simulation was used to highlight dead zones inside the cylinder head, map temperatures, and detect under- and over-cooled areas. It also made it possible to obtain the curves of the temporal evolution of the temperatures at the probes.


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