✍ Scribed by M Lemistre; D Soulevant; F Micheli; A.A Déom
No coin nor oath required. For personal study only.
Erosion by sand of aircraft and rotorcraft engines being a real problem, ONERA has developed a test facility to reproduce and analyse in laboratory, the impact of solid particles on targets. This test facility, based on aerodynamic particles acceleration, allows to generate a continuous flow of particles having a mean diameter of 80 to 600 mm, with a velocity up to 180 m s y1 . A remarkable characteristic of this set-up is that the particles impact on the target is achieved without any residual airflow. During tests with metallic targets, a vectorial Ž . mapping of the reflected particles has been reconstructed for several incidence angles 15 to 758 , by measurement of two components of the velocity and statistical signal processing.
📜 SIMILAR VOLUMES
Two experimental apparatus have been built in our laboratory to study He I Two Phase Flow at atmospheric pressure. The first apparatus has been designed to create horizontal flows in a 0.01 m diameter tube A 0.1 m long visualization has been realised to study flow patterns. Two types of heat transfe
## Abstract We propose a new multimarker test for family‐based studies in candidate genes. We use simulations under different genetic models to assess the performance of competing testing strategies, characterized in this study as combinations of the following important factors: genes, statistical