CERFACS CERFACS Scientific Activity Report Jan. 2010 â Dec. 2011

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4 Advanced Methods and Multiphysics 156 4.1 Numerical methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 4.2 Applications for external flows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159 4.3 Software engineering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163 4.4 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165 5 Publications 167 5.1 Conferences Proceedings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 5.2 Journal Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 5.3 Technical reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172 5.4 Thesis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175 7 Aviation and Environment 177 1 Introduction 179 2 Simulations of aircraft wakes and rocket launch emissions 181 2.1 Wake simulation in the vortex regime . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181 2.2 Wake simulation in the diffusion regime . . . . . . . . . . . . . . . . . . . . . . . . . . . 183 2.3 Impact of rocket launches on atmospheric O 3 . . . . . . . . . . . . . . . . . . . . . . . . 184 3 Large scale atmospheric composition 187 3.1 Introduction of chemistry into large-scale atmospheric models . . . . . . . . . . . . . . . 187 3.2 A finite volume model for the advection of tracers on a sphere . . . . . . . . . . . . . . . 188 3.3 Atmospheric impact of alternate fuel for aviation : the SWAFEA project . . . . . . . . . . 189 4 Publications 191 4.1 Journal Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191 4.2 Technical Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192 viii Jan. 2010 – Dec. 2011
Table des figures CERFACS chart as of Dec. 31, 2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv 1 Parallel Algorithms Project 1 2 Electromagnetism and Acoustics Team 45 2.1 Reflectarray part of the TSA-CNES antenna at 9.65 Ghz including 12 × 24 cells. . . . . . 54 2.2 Computed and measured radiation pattern when the main lobe is in the normal direction. . 54 2.3 Computed and measured modification of the main lobe resulting from a suitable data set of the impedance cells. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 2.4 Bistatic pattern of a rectangular brick obtained by solving the C3IE on usual and refined meshes and the CFIE on a very refined mesh. . . . . . . . . . . . . . . . . . . . . . . . . 55 2.5 Bistatic pattern obtained by the RS-C3IE. . . . . . . . . . . . . . . . . . . . . . . . . . . 55 2.6 A view of the refined mesh around the sharp edges of the geometry. . . . . . . . . . . . . 55 2.7 View of a multi-perforated wall of the combustion chamber of an aircraft engine (Courtesy of SNECMA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 2.8 Finite size array of perforations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 2.9 Reflection coefficient corresponding to the finite size array. . . . . . . . . . . . . . . . . . 56 2.10 Reflection coefficient corresponding to the infinite array. . . . . . . . . . . . . . . . . . . 56 2.11 Homogeneous sphere of radius 1 and index of refraction n = 4. . . . . . . . . . . . . . . 56 2.12 Sphere D of radius 1 and index of refraction n = 4 containing a cavity D 0 , a sphere of radius 0.25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 2.13 Almond geometry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 2.14 Radar Cross Section of the dielectric almond : ε r = 4, k = 28m −1 and 200000 degrees of freedom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 2.15 Non smooth solution : behaviour of uniform (uni) and adaptive (adp) algorithms . . . . . . 59 4.1 Mean flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 4.2 Real part the components of Euler velocity ( on left obtained form the Galbrun system, on right with the potential approach. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 4.3 Real part of the displacement component for a value Z. . . . . . . . . . . . . . . . . . . . 64 4.4 Real part the components of the Euler velocity ( on left obtained form the potential approach system, at middle form the new model, on right with the Galbrun system. . . . . . . . . . 65 4.5 Relative error versus the number of iterations for different relaxation coefficients . . . . . 66 4.6 DDM solution for a non uniform mean flow . . . . . . . . . . . . . . . . . . . . . . . . . 67 CERFACS ACTIVITY REPORT ix
Page 1 and 2: CERFACS Scientific Activity Report
Page 3 and 4: Table des matières 1 Foreword xiii
Page 5 and 6: 9 Publications 40 9.1 Books . . . .
Page 7: 3 The OpenPALM coupler 104 3.1 Intr
Page 11 and 12: TABLE DES FIGURES 6 Computational F
Page 13 and 14: Foreword Welcome to the 2010-2011 S
Page 15 and 16: CERFACS STRUCTURE CERFACS organizat
Page 17 and 18: CERFACS STAFF NAME POSITION PERIOD
Page 19 and 20: CERFACS STAFF SILVA GARZON Ph.D stu
Page 21 and 22: CERFACS STAFF NAME POSITION PERIOD
Page 23: CERFACS Wide-Interest Seminars Pete
Page 27 and 28: 1 Introduction 1.1 Introduction The
Page 29 and 30: PARALLEL ALGORITHMS PROJECT success
Page 31 and 32: PARALLEL ALGORITHMS PROJECT Visitor
Page 33 and 34: 3 List of Members of HiePACS HiePAC
Page 35 and 36: 4 Dense and Sparse Matrix Computati
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Page 39 and 40: 5 Iterative Methods and Preconditio
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PARALLEL ALGORITHMS PROJECT Decembe
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PARALLEL ALGORITHMS PROJECT July WC
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PARALLEL ALGORITHMS PROJECT Septemb
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PARALLEL ALGORITHMS PROJECT [ALG15]
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PARALLEL ALGORITHMS PROJECT [ALG54]
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1 Overview presentation The main ex
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ELECTROMAGNETISM AND ACOUSTICS TEAM
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1 Introduction Data assimilation is
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DATA ASSIMILATION 2.3 Calibrating o
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3 Data assimilation for atmospheric
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DATA ASSIMILATION BECM using or not
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DATA ASSIMILATION the potential vor
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DATA ASSIMILATION A two years simul
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DATA ASSIMILATION FIG. 4.1: Reducti
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DATA ASSIMILATION FIG. 4.3: April 2
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DATA ASSIMILATION by a surface mode
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6 Data assimilation with EDF neutro
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DATA ASSIMILATION demonstrate that
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DATA ASSIMILATION [DA13] S. Massart
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4 Coupling tools and HPC Climate Mo
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2 The OASIS coupler The OASIS coupl
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THE OASIS COUPLER 2.3 OASIS4 Since
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3 The OpenPALM coupler 3.1 Introduc
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THE OPENPALM COUPLER In the NitroEu
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4 HPC Climate modelling 4.1 General
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5 Publications 5.1 Conference Proce
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5 Climate Variability and Global Ch
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2 Climate variability and predictab
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CLIMATE VARIABILITY AND PREDICTABIL
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CLIMATE VARIABILITY AND PREDICTABIL
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CLIMATE CHANGE AND IMPACT STUDIES a
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CLIMATE CHANGE AND IMPACT STUDIES b
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PUBLICATIONS [CM15] Y. Kwon, C. Des
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1 Introduction The CFD (Computation
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2 Combustion The research activity
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COMPUTATIONAL FLUID DYNAMICS rate-o
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COMPUTATIONAL FLUID DYNAMICS FIG. 2
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COMPUTATIONAL FLUID DYNAMICS an iss
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COMPUTATIONAL FLUID DYNAMICS TU Ber
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COMPUTATIONAL FLUID DYNAMICS design
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COMPUTATIONAL FLUID DYNAMICS (a) (b
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COMPUTATIONAL FLUID DYNAMICS 3.1.5
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COMPUTATIONAL FLUID DYNAMICS (a) Ve
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COMPUTATIONAL FLUID DYNAMICS The cl
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COMPUTATIONAL FLUID DYNAMICS (a) Do
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5 Publications 5.1 Conferences Proc
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COMPUTATIONAL FLUID DYNAMICS [CFD34
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7 Aviation and Environment
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INTRODUCTION instead of regular ker
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SIMULATIONS OF AIRCRAFT WAKES AND R
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LARGE SCALE ATMOSPHERIC COMPOSITION
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LARGE SCALE ATMOSPHERIC COMPOSITION
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PUBLICATIONS 4.2 Technical Reports
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CERFACS CERFACS Scientific Activity Report Jan. 2010 â Dec. 2011

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CERFACS CERFACS Scientific Activity Report Jan. 2010 â Dec. 2011