[Geoinfo] Fwd: School on Scaling Laws in Geophysics: Mechanical and Thermal Processes in Geodynamics

[Patricia Alvarado]

>>>
From: Abdelkrim Aoudia <aoudia en ictp.it>
Date: Tue, Nov 30, 2010 at 2:11 PM
Subject: School on Scaling Laws in Geophysics: Mechanical and Thermal
Processes in Geodynamics



ICTP School on Scaling Laws in Geophysics: Mechanical and Thermal
Processes in Geodynamics

23 May- 3 June 2011, Trieste - Italy

The purpose of this school is to give a basic understanding that
underlies scaling laws and their applications to problems in solid
Earth geophysics, with an appreciation for the value of gaining
understanding of mechanical and thermal processes in geodynamics
before pursuing “complicated / sophisticated / advanced” computational
models.

The school is intended for graduate students, post-doctoral fellows,
as well as more senior researchers who are interested in these fields.

TOPICS TO BE COVERED:

Brief introduction to basic continuum mechanics: stress, strain rate,
constitutive laws, Stokes and Navier-Stokes equation, and the insights
given by scaling and fundamental dimensionless numbers.

Isostasy, gravitational potential energy, and thin viscous sheet:
scaling of deformation fields to boundary conditions, Argand number,
and the exponent n in non-Newtonian viscosity.

Rayleigh-Taylor instability: scaling of growth rates to density, layer
thickness, and viscosity, effects of, and scaling for, non-Newtonian
viscosity (n), role of low-density crust and its scaling relations.

Advection and diffusion of heat and thermal structure of the
lithosphere: scaling of diffusion time with thickness, relations
between advective and diffusive transport (Peclet number), and forced
convection by downgoing slabs.

Mixing by fluid flow: kinematics, fixed points, role of flow type and
rheology, scaling of mixing times and lengths.

Melting and chemical segregation: flow in porous materials, role of
interfacial tension (Capillary number), dispersion (Peclet number),
phase transitions, and the Stefan number.

Thermal convection: Rayleigh number and scaling of velocity
components, heat transport (Nusselt number), planform, and
time-dependence.

Flow in media with temperature-dependent viscosity: scaling of heat
transfer and boundary layer thickness to the local Rayleigh number.

Affect of compressibility on mantle convection: scaling of internal
heating to the temperature scale height or dissipation number.

Effects of chemical differences on flow in the mantle and magma
chambers: dependence on the buoyancy and Rayleigh

PARTICIPATION:

Scientists and post-graduate fellows from all countries that are
members of the United Nations, UNESCO or IAEA may attend the school.
As it will be conducted in English, participants should have an
adequate working knowledge of this language. Although the main purpose
of the Centre is to help research workers from developing countries,
students and post-doctoral scientists from advanced countries are also
welcome to apply.

Limited funds are available for participants, who are nationals of,
and working in, a developing country, and who are not more than 45
years old. Such support is available only for those who at- tend the
entire activity. There is no registration fee.

HOW TO APPLY: The application form can be accessed at the activity
website http://agenda.ictp.it/smr.php?2240
School secretariat: smr2240 en ictp.it, tel: +39 0402240576, Fax: +39 0402240585

DEADLINE for requesting participation:
27 February 2011: if financial support and/or visa are needed
30 April 2011: if neither financial support nor visa are needed


Organizers: P. Molnar, G. Houseman, M. Manga, C. Jaupart, A. Aoudia
Guest Lecturers: L. Fleitout, R. Katz, J. Niemela, S.-j. Zhong

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