Concepts of Adaptivity for Vortex Particle Methods and Applications to Bluff Body Aerodynamics
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Beschreibung
This dissertation presents a novel adaptive solution strategy, in the framework of vortex particle methods, that allows the efficient resolution of multiple scales that are characteristic of flows around bluff bodies with small structural details. The numerical studies are further validated against Wind Tunnel tests performed by the author. Studies of accuracy and efficiency are performed by simulating the flow past the cross sections of bridges and energy harvesting devices. A substantially higher computational efficiency compared to equally accurate non-adaptive simulations is reported. Solution properties studied include the resolution of local velocity profiles and global aerodynamic coefficients. These reveal how the application of the full adaptive strategy enables for the accurate and efficient prediction of the flow features. The results indicate speed-ups of up to factor 4 to 10 when comparing the new approach to the classical Vortex Particle Method.
Autor*in
Dario Milani
Dario Milani is an aerospace engineer with a specialization in Aerodynamics and Computational Fluid Dynamics. Dario has always been attracted by the beauty and the complexity of the nature, which never cease to inspire him.
During his first years in research, Dario developed numerical methods to compute the aeroelastic behavior of long slender structures e.g. Bridges and Skyscrapers. Also, as part of his doctoral studies, Dario developed a Wind Tunnel facility at the Bauhaus University, which can be used now to investigate the effects of wind on models of real structures such as bridges and buildings.
Because of his passion for research Dario Milani founded a group, the DM-AirTech group, where “research activities point to the right direction and not necessarily the one that current market opportunity offers”. In parallel, Dario is working full time in the aerospace industry, where he enjoys the opportunity to contribute to the development of technologies with positive impact on the life of people.
Themen in »Concepts of Adaptivity for Vortex Particle Methods and Applications to Bluff Body Aerodynamics«
Adaptation Aerodynamics Aeroelasticity Vortex Particle Methods Wind Tunnel Tests