Pressure wave propagation induced by short circuits inside power transformers: Development of a simulation tool, comparisons with experiments and applications

Autor: Margareta Petrovan-Boiarciuc, Sebastien Muller, Guillaume Perigaud

Publikováno v: International Journal of Multiphysics, Vol 3, Iss 4 (2016)

Transformer explosion and its prevention is a complex industrial issue where various physical phenomena occur. To understand them, an experimental test campaign was performed by CEPEL on large scale transformers. It consisted in creating arcing in oi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3aba441660513881d2c0857ecf094efe
https://doi.org/10.1260/1750-9548.3.4.361

Wall Scaling and Wall Models for Complex Turbulent Flows

Autor: Nikolaus Peller, Michael Manhart, Margareta Petrovan Boiarciuc, Christophe Brun

Publikováno v: Notes on Numerical Fluid Mechanics and Multidisciplinary Design ISBN: 9783540899556

The near wall behaviour of complex turbulent flows is investigated by dimensional considerations and a priori investigations. We consider separated incompressible and compressible flows. In incompressible turbulent flows, it is found that the flow in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::60ca9eb37f2c5d012c2c4ae271652adb
https://doi.org/10.1007/978-3-540-89956-3_12

Prevention of Transformer Tank Explosion: Part 4—Development of a Fluid Structure Interaction Numerical Tool

Autor: Guillaume Pe´rigaud, Margareta Petrovan-Boiarciuc, Ben Landis, Se´bastien Muller, Ryan Brady

Publikováno v: Volume 4: Fluid-Structure Interaction.

Oil filled transformer explosions and their prevention is a complex industrial issue. Experimental tests showed that when an electrical fault occurs in a transformer, it generates dynamic pressure waves that propagate in the oil. Reflections of these

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5aa360a2c0266e7ff60ec5d17b53b351
https://doi.org/10.1115/pvp2009-77415

Subgrid-Scale modeling of scalars for large-eddy simulations of transitional flows

Autor: Christophe Brun, Guillaume Balarac, Da Silva, Carlos B., Margareta Petrovan Boiarciuc, Olivier Métais

Publikováno v: 7th International ERCOFTAC Symposium on Engineering Turbulence Modeling and Measurements
7th International ERCOFTAC Symposium on Engineering Turbulence Modeling and Measurements, Jun 2008, Limassol, Crète, Greece
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International audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::288c1618de06ecbc6e622436686f1068
https://hal.archives-ouvertes.fr/hal-02377210

Large-Eddy Simulation of compressible channel flow : arguments in favour of universality of turbulent wall-bounded flows

Autor: Margareta Petrovan Boiarciuc, Christophe Brun, Pierre Comte, Marie Haberkorn

Publikováno v: Theoretical and Computational Fluid Dynamics
Theoretical and Computational Fluid Dynamics, Springer Verlag, 2008, 22, pp. 189-212. ⟨10.1007/s00162-007-0073-y⟩
Theoretical and Computational Fluid Dynamics, Springer Verlag, 2008, 22 (2), pp.1--25

The present study is a contribution to the analysis of wall-bounded compressible flows, including a special focus on wall modeling for compressible turbulent boundary layer in a plane channel. large eddy simulation (LES) of fully developed isothermal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c3d70851219cc2b1ceb8fa0a08bf66e
https://hal.archives-ouvertes.fr/hal-00368739