Heavy rail

On-Board Aerodynamic Measurements

Characterize railway aerodynamics phenomena for the type approval of rolling stock and infrastructure.

Tests objectives

  • Characterize aerodynamic forces on the structure of the train
  • Characterize resistance to pressure waves
  • Characterize the aerodynamic parameters involved when a train goes through a tunnel through tests on board the train
  • Conduct aero-acoustic measurements
  • Monitor flying ballast
  • Carry out computer simulations in order to determine specific eligibility criteria according to TSI (e.g. pressure loads)

Tests facilities

  • Multi-channel data acquisition device
  • Absolute and differential pressure sensors
  • 3D ultrasonic anemometer
  • Prandtl probe
  • System for counting ballast impacts under the car body (patented device)

Testing norms

EN 14067 – Aerodynamics – part 1: Symbols and units – part 2: Aerodynamics on open track

UIC 651 – Layout of driver’s cabs in locomotives, railcars, multiple-unit trains and driving trailers

UIC 660 – Measures to ensure the technical compatibility of high-speed trains

Technical Specifications for Interoperability – Rolling Stock: High Speed

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Our references

ALSTOM
BOMBARDIER
INFRABEL
SNCF-RESEAU
SIEMENS