Abstract
Damage models for high speed atmospheric aerosol particle impacts are necessary to link numerical and experimental studies on boundary layer transition and vehicle surface erosion for relevant flight conditions. We present findings of ongoing damage and surface characterization of high speed (0.2 to 0.9 km/s) micrometer-sized ferrous sulfate particle impacts onto Al-6061 surfaces. In this experiment, well controlled 1.8 μm and 6.2 μm monodisperse (single diameter) particles of ferrous sulfate are generated and then subsequently accelerated by a converging diverging nozzle with particle speeds measured by laser doppler velocimetry. Surface topography changes facilitated by individual particle impacts are characterized as a function of particle size, impact speed and impact angle. We observe that the dimensionless crater volume,normalized by the particle volume, scales with the specific kinetic energy, with a scaling exponent of 2.0.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.