Research
New SNSF funded project: "A Homogenization based approach for aquaporin flow description"
EU funded project: HM^2F: New design for hierarchical multifunctional membranes
Under the program H2020-MSCA-COFUND
Fluid structure interaction in biomimetics with multi-scale techniques
As a fluid dynamicist, I am fascinated by the fact that natural inertial flows are always imperfect and characterised by complexities. In most of them separation of scales is present. As a mathematician, I see multi-scale techniques as a way to analyse these phenomena. They allow us to deduce from the infinitely small scale useful information to be transferred to the biggest scale. In other words, they make visible the invisible and usable the unusable. In my research, I use these theoretical tools with a particular attention to numerics to carry out numerical solutions of the analysed phenomena with my own codes and solvers (written in Matlab or based on OpenFOAM). |
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I am currently working as a postdoc fellow (scientific supervisor Prof. J. Magnaudet) in the project BIOSKINS (ref. Prof. A. Bottaro) founded by the French Ministry of Research under the program INVESTISSEMENTS D’AVENIR.
Micro and nanoscopic irregularities conceal a strategy for Nature to change capabilities of natural surfaces (e.g. the superhydrophobic effect of Lotus or Salvinia Molesta, the hydrodynamic efficiency of sharks, the aeroacoustic of owls).
I used my background in homogenization to develop a boundary condition for fluid flowing over rough surfaces (a generalization of the well known Navier-slip condition).
During my PhD I worked on the European project PEL-SKIN: A novel kind of surface coatings in aeronautics whose aim was to deliver a bio-inspired airfoil coating (composed of a densely packed arrangement of flexible fibre) to improve the global aerodynamic performance and manoeuvrability of future air transport.
I successfully modeled the interaction between a fluid and the coating with the use of a homogenization technique, at regimes where inertia is not negligible.
The thesis has been awarded by ERCOFTAC among the five best thesis in Europe in fluid dynamics.
Read the abstract below or download the thesis here.
Micro and nanoscopic irregularities conceal a strategy for Nature to change capabilities of natural surfaces (e.g. the superhydrophobic effect of Lotus or Salvinia Molesta, the hydrodynamic efficiency of sharks, the aeroacoustic of owls).
I used my background in homogenization to develop a boundary condition for fluid flowing over rough surfaces (a generalization of the well known Navier-slip condition).
During my PhD I worked on the European project PEL-SKIN: A novel kind of surface coatings in aeronautics whose aim was to deliver a bio-inspired airfoil coating (composed of a densely packed arrangement of flexible fibre) to improve the global aerodynamic performance and manoeuvrability of future air transport.
I successfully modeled the interaction between a fluid and the coating with the use of a homogenization technique, at regimes where inertia is not negligible.
The thesis has been awarded by ERCOFTAC among the five best thesis in Europe in fluid dynamics.
Read the abstract below or download the thesis here.
"Homogenized-based modeling of flows over and through poroelastic media" G. A. Zampogna, Advisor: Prof. A. Bottaro, 2016.
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In Nature, fluid-structure interactions are often characterized by separation of scales, due to the presence of small-scale roughness or deformable irregularities present on macroscopic surfaces. This is the case, for instance, of the scales which cover the wings of the butterflies or the shark’s skin, the barbules which characterize the owl’s feathers or the microscopic protrusions present on the surface of lotus’ leaves. A robust way to bypass the complexity of fine-grained numerical simulations is to consider macroscopic approaches that disregard the microscopic properties of the structure aside from the presence of effective tensorial properties resulting from the solution of microscopic problems. In my doctoral dissertation, I adopted this homogenization perspective, where particular attention is also paid to regimes in which inertia within the pores is not negligible.
See the full list of publications here. |