Publications associées à Orage

A new boundary condition for large-eddy simulation of boundary-layer flow over surface roughness transitions

Large-eddy simulations are performed to evaluate the performance of the surface boundary condition downwind of a rough-to-smooth surface transition. Two types of boundary conditions are tested: (1) The standard formulation based on local application of the ...

Taylor & Francis2012

Lightning Return Strokes to Tall Towers: Ability of Engineering and Electromagnetic Models to Reproduce Nearby Electromagnetic Fields

Marcos Rubinstein, Davide Pavanello, Abdolhamid Shoory, Seyed Abbas Mosaddeghi

We present measurements of nearby vertical and horizontal electric fields from leaders and return strokes associated with lightning strikes to the 100-m-tall Gaisberg Tower in Austria obtained in 2007 and 2008. The fields were measured at a distance of abo ...

Ieee-Inst Electrical Electronics Engineers Inc2012

Finite-size supercell correction schemes for charged defect calculations

Alfredo Pasquarello, Hannu-Pekka Komsa

Various schemes for correcting the finite-size supercell errors in the case of charged defect calculations are analyzed and their performance for a series of defect systems is compared. We focus on the schemes proposed by Makov and Payne (MP), Freysoldt, N ...

2012

Competition of the primary and peritectic phases in hypoperitectic Cu-Sn alloys solidified at low speed in a diffusive regime

Michel Rappaz, Jean-Daniel Wagnière, Jonas Valloton

Directional solidification experiments on hypoperitectic Cu-Sn alloys have been performed at very low velocity in a high thermal gradient to ensure planar front growth of both phases. The diameter of the sample has been reduced to 500 mu m to strongly redu ...

Elsevier2012

Convective cells and blob control in a simple magnetized torus

Ambrogio Fasoli, Ivo Furno, Christian Gabriel Theiler, Joaquim Loizu Cisquella

In view of controlling wall and divertor heat loads in magnetic fusion devices, we investigate the possibility of creating convective cells by means of biased electrodes for turbulence and blob control in the simple magnetized toroidal plasmas of TORPEX. A ...

2011

Improved interpolation of meteorological forcings and hydrologic implications for a Swiss alpine region

Andrea Rinaldo, Alexis Berne, Cara Christine Tobin, Marc Parlange, Ludovico Nicotina

This paper presents a comparative study on the mapping of temperature and precipitation fields in complex Alpine terrain. Its relevance hinges on the major impact that inadequate interpolations of meteorological forcings bear on the accuracy of hydrologic ...

2011

On the proportion of upward flashes to lightning research towers

Marcos Rubinstein, Wolfgang Schulz

We compare in this paper direct measurements obtained at the Towers on Mount San Salvatore (Switzerland) and the Gaisberg Tower (Austria). They are situated in similar topographical environments but in different lightning activity zones. Direct measurement ...

IEEE2011

Calculation of lightning-induced voltages on an overhead line taking into account the presence of nearby buildings

Mario Paolone, Carlo Alberto Nucci

For the case of urban overhead lines, the presence of nearby buildings is expected to affect the overvoltages induced by nearby lightning return strokes. This effect until now has been seldom taken into account in the literature on the subject. The paper p ...

IEEE2011

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Orage

A new boundary condition for large-eddy simulation of boundary-layer flow over surface roughness transitions

Lightning Return Strokes to Tall Towers: Ability of Engineering and Electromagnetic Models to Reproduce Nearby Electromagnetic Fields

Finite-size supercell correction schemes for charged defect calculations

Competition of the primary and peritectic phases in hypoperitectic Cu-Sn alloys solidified at low speed in a diffusive regime

An integrated modeling study on the effects of mineral dust and sea salt particles on clouds and precipitation

Convective cells and blob control in a simple magnetized torus

Improved interpolation of meteorological forcings and hydrologic implications for a Swiss alpine region

On the proportion of upward flashes to lightning research towers

Calculation of lightning-induced voltages on an overhead line taking into account the presence of nearby buildings

Dynamical states of low temperature cirrus

Graph Chatbot

Chattez avec Graph Search

Competition of the primary and peritectic phases in hypoperitectic Cu-Sn alloys solidified at low speed in a diffusive regime

Improved interpolation of meteorological forcings and hydrologic implications for a Swiss alpine region

Calculation of lightning-induced voltages on an overhead line taking into account the presence of nearby buildings

Convective cells and blob control in a simple magnetized torus

Dynamical states of low temperature cirrus

On the proportion of upward flashes to lightning research towers

Finite-size supercell correction schemes for charged defect calculations

A new boundary condition for large-eddy simulation of boundary-layer flow over surface roughness transitions

Lightning Return Strokes to Tall Towers: Ability of Engineering and Electromagnetic Models to Reproduce Nearby Electromagnetic Fields