Stillingstittel:
PhD Research Fellowship in Geophysical Flow Processes

Stillingsbeskrivelse:
The University of Oslo is Norway’s largest institution of research and education with 28 000 students and 7000 employees. Its broad range of academic disciplines and internationally esteemed research communities make UiO an important contributor to society.

Position as PhD Research fellow is available at Department of Geosciences, Section of Physics of Geological processes.

If the successful candidate has a good knowledge of one Scandinavian language (Norwegian, Swedish, Danish), the fellowship will be for a period of 4 years, with 25 % compulsory work (teaching responsibilities at the Department). Otherwise, the fellowship will be for a period of 3 years, with no compulsory work. Starting date no later than 1 October, 2016.

No one can be appointed for more than one fixed-term period at the same institution.

Job/ project description:

The project is entitled “From suspension to granular flows”. Flows in the Earth's interior are often heterogeneous, with rigid clasts surrounded by viscous solids or fluids. In suspension flows, shear-induced mixing and homogenization processes are particularly interesting for complex background flows such as in the case of crystal-bearing melts in magmatic conduits. At large clast fractions, an extensive network of contacting particles continuously reconfigures during flow such as in the case of granular materials generated along earthquake faults or in rockslides. The effective mechanical behavior is dominated by fracturing of grains and frictional interactions at grain contacts leading to strongly non-linear rheological behavior, largely independent of the interstitial fluid. Many natural systems have intermediate fraction values and exhibit a spectrum of rheological behavior, including concomitant ductile and brittle mechanisms. It is largely unknown how these mechanisms combine, whether shear localization could occur in such systems, and how widely thetransition depends on microstructuralcharacteristics such as grain size distribution, aspect ratio or roughness. In the project, direct numerical simulations and analogue experiments will be used to develop improved mechanical models of mixed suspension and granular flows.

This PhD Research Fellowship is part of the Strategic Research Initiative ‘Earth Flows’. The project will be conducted at Physics of Geological Processes, which is a cross-disciplinary research group at the Departments of Geosciences and Physics at the University of Oslo. The student will be supervised by specialists in numerical and analogue modelling of suspension and granular flows (Marcin Dabrowski, Kjetil Thøgersen, Karen Mair, Atle Jensen, Andreas Carlson).

Requirements/qualifications: The Faculty of Mathematics and Natural Sciences has a strategic ambition of being a leading research faculty. Candidates for these fellowships will be selected in accordance with this, and expected to be in the upper segment of their class with respect to academic credentials.

Applicants must hold a Master’s degree or equivalent in Earth Sciences, Physics, Fluid Dynamics, or a related discipline at the start of fellowship. Candidates without a Master’s degree have until 30 June, 2016 to complete the final exam.

The purpose of the fellowship is research training leading to the successful completion of a PhD degree. The fellowship requires admission to the PhD programme at the Faculty of Mathematics and Natural Sciences. The application to the PhD programme must be submitted to the department no later than two months after taking up the position.

For m

Minstelønn: 0

Maksimal lønn: 0

Arbeidsgiver Navn: Universitetet i Oslo, Department of Geos

Arbeidsgiver adresse: 0316 OSLO

Job kort beskrivelse: Physicists and astronomers

Land: Norge

Region: Oslo

Kilde til jobbtilbud: NAV, Offentlige arbeidsformidlinger, Norge

Lønn valuta: NOK

Lønn periode: Pr. år