Improved Unsteady Aerodynamic InfluenceCoefficients

Currently Bombardier Aerospace uses the Doublet Lattice Method (DLM), incorporated into a
structural solver, to perform aeroelastic calculations such as flutter. This method is able to provide
very good results in the subsonic regime, but looses accuracy in the transonic regime due to the high
non linearity of the flow. A methodology was developed where the aerodynamic data produced by
DLM is replaced by high fidelity CFD data. This project is aimed at producing unsteady aerodynamic
data in the transonic regime to be used in Bombardier’s new methodology to perform more accurate
aeroelastic calculations.

Faculty Supervisor:

Mathias Legrand

Student:

Partner:

Bombardier Aerospace Inc (Dorval, QC)

Discipline:

Engineering

Sector:

Manufacturing; Transportation and warehousing

University:

McGill University

Program: