CV Lattes
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Universidade de São Paulo (USP). Instituto de Matemática e Estatística (IME) (Institutional affiliation from the last research proposal) Birthplace: Brazil
Cloddoaldo Grotta Ragazzo holds a bachelor's degree in Biosciences (1986) and Naval Engineering (1986), both from the University of São Paulo (USP), and a Ph.D. in Physics from the Institute of Physics at USP (1989). Currently, he is a full professor at the Institute of Mathematics and Statistics of the University of São Paulo, where he served as director from April 2014 to March 2018. His research focuses on Mathematics, with an emphasis on celestial mechanics with dissipative forces (tides), ordinary differential equations, Hamiltonian systems, fluid mechanics, and delay differential equations. (Source: Lattes Curriculum)
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The present pre-project continues the work of three previous Thematic Projects supported by FAPESP with numbers 2006/03829-2, 2011/16265-8, and 2016/25053-8. The research group includes established researchers working in dynamical systems and low-dimensional geometry. Younger researchers will be included later in the full project as associated researchers. The areas covered by the project…
This project will be related to the current project "CATEDRAS FRANCO-BRASILEIRAS NO ESTADO DE SÃO PAULO" under the coordination of Clodoaldo Grotta Ragazzo and partnership with French host Alain Albouy, who has production related to central configurations, including with the visitor proponent , Antonio Carlos Fernandes. In addition to this, the FAPEMIG/Universal 2018 project, APQ 03149-18…
The dynamics of fluid droplets can be extremely complex. In particular, in a set of experiments it was found that droplets may bounce on a vibrating fluid bath of the same fluid and under some circumstances become mobile, driven by their own wave-field. In this case, the droplet and its "pilot wave" form a single object close to what de Broglie envisioned as a model for particle-wave dual…
(Only some records are available in English at this moment)
Among the known planetary systems, despite their apparent stability lasting for millions or billions of years, a rather complex scenario is observed. Although it is well known that any set of celestial bodies orbiting each other is not a fully conservative system, due to different dissipation sources, the time required to reach the final dissipated states is often unattainable. What is se…
The gradient formed by a gravitational field exerted on a body leads to a phenomenon called tidal force, which is one of the main mechanisms for energy loss in planetary systems. The goal of this project is to investigate the effects of tidal forces on the spin evolution of a celestial body, typically a terrestrial planet, a fluid planet, or a satellite in either our solar system or in ex…
The goal of this project is to propose and analyse multilayered rheological models for the dynamics of extended deformable bodies evolving under the influence of gravitational forces. A typical case is that of a satellite with icy crusts, subsurface oceans, molten mantles and solid cores orbiting a giant planet in either our solar system or in exoplanetary systems. Important questions tha…
The goal of this project is to investigate some mathematical questions that arise in the modeling of the motion of two- and three-body systems of extended bodies under the influence of their mutual gravitational forces. Such bodies display deformations due to tides, which dissipate energy over the very long time spans typical of the evolution of planetary and related systems in Celestial …
The rotational dynamics of a close-in body is highly affected by the dissipative torque caused by tidal forces, which is a consequence from the gradient formed by a gravitational field exerted on said body. Here, we consider the three-dimensional problem of an extended body under the gravitational potential of one and two point mass primaries, where the gravitating body is assumed to have…
The goal of this project is to propose and analyse multilayered rheological models for the dynamics of icy satellites with subsurface oceans evolving under the influence of gravitational forces. Important questions that we intend to address with the proposed models are, among others, (i)~whether the tidal dissipation in the liquid layer caused by the forced librations and the obliquity of…
The goal of this internship project is to investigate the effects of tidal forces on the orbital evolution of a celestial body (tipically, a terrestrial planet or moon in either our solar system or exoplanetary systems) modelled after an n-layer rheological model (possibly including icy crusts, subsurface oceans, molten mantles, solid cores, etc.), and to compare the results of the numeri…
| 2 / 2 | Ongoing grants |
| 12 / 10 | Completed research grants |
| 2 / 2 | Ongoing scholarships in Brazil |
| 8 / 2 | Completed scholarships in Brazil |
| 5 / 3 | Completed scholarships abroad |
| 29 / 19 | All research grants and scholarships |
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