THE field velocity or grid velocity approach is a method for incorporating unsteady flow
conditions via grid movement in computational fluid dynamic simulations. This approach …

Coupled computational fluid dynamics/computational structural dynamics (RCAS/HELIOS
and CAMRAD II/HELIOS) analyses are performed, and the calculated rotor structural loads …

The numerical simulation of dynamic stall around a 3D finite-span oscillating wing of
constant OA209 airfoil section is compared to experimental results obtained in the ONERA …

This paper gives an overview of CFD techniques developed and used at ONERA for
rotorcraft applications. First, the complex multidisciplinary environment around helicopters …

The subject of this paper is milestones in rotorcraft aeromechanics. Aeromechanics covers
much of what the engineer needs: performance, loads, vibration, stability, flight dynamics …

The ONERA 7A rotor wind-tunnel test data are investigated to assess the accuracy of
analytical tools in the calculation of rotor airloads and structural loads. Comprehensive …

A fluid–structure analysis framework that couples computational fluid dynamics and
computational structural dynamics is constructed to study the aeromechanics of a helicopter …

Full vehicle simulations are performed for a coaxial helicopter using CREATE-AV Helios
software, which provides a user friendly interface to accomplish high-fidelity complete …

We present a novel approach for the simulation of aerodynamic configurations where
vortical and wake effects are important. The approach makes use of a well established …

The key objectives of this paper are to assess the accuracy and the validity of our current
aerodynamic analysis tools in predicting the unsteady flow field generated by helicopter …