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

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COMBUSTION 2.4.2 HPC (G. Staffelbach, P. Wolf, L. Kuban) Following the global trend to ever more powerful computers, CERFACS has continued optimizing and pushing the limits of its solvers on new architectures. For example the scalability of the AVBP solver has been pushed up to 92% of the ideal performance on 16384 cores on the BlueGene P at Argonne. This activity has been a continued effort along scientific projects on the national project calls by GENCI and National Grand Challenges at CINES [CFD64] and CEA but also on international initiatives such as INCITE and PRACE. CERFACS has been one among only three european project holders under the American Department of Energy INCITE program in 2010 and in 2011 focusing on HPC applied to combustion instabilities and two-phase flows. In parallel CERFACS was awarded 8.5 million CPU hours in the 2nd call of PRACE, to study high frequency jet interaction under transcritical conditions with EM2C (Paris). The ANR COSINUS project SIMTUR has also enabled CERFACS to simplify the workflow, leading to even more challenging simulations such as the extinction mechanisms of an aeronautical engine performed by L. Kuban (Fig. 2.13). This shows that HPC is of direct interest to applications and that HPC technology transfer towards industry is effective. FIG. 2.13: Combustion in a full aeronautical engine : temperature field on a cylinder passing through the axis of the swirlers when all of them (left) or only one of them (right) are fed with fuel (ANR SIMTUR) 2.4.3 ”Interface Homme-Machine” (IHM) C3S (A. Dauptain, E. Riber, G. Frichet) CERFACS believes that developing interfaces for LES runs is as critical today as developing the LES tools themselves. The C3S project is dedicated to the construction of this interface and is continuously using two to four researchers/engineers at CERFACS. C3S is now used on a daily basis at CERFACS, IMFT, SNECMA and Turbomeca. In april 2011, an industrialized version of AVBP-Gaz Réels has been included and made available to SAFRAN-Vernon, for rocket engine liquid propulsion simulations. In July 2011, a tool to directly and simply plug AVBP results into other engineering tools of the ”Bureau d’Etudes” has been delivered to Turbomeca. This last step places our numerical tools at the center of the design methodology, and increases the link between Cerfacs and its partners. In parallel, the C3SM project started in april 2011. C3SM is a first prototype of IHM of second generation, 144 Jan. 2010 – Dec. 2011
COMPUTATIONAL FLUID DYNAMICS designed to alleviate the work of the developing teams while significantly improving the user perception of the interface. A detailed analysis of the underlying concepts has been presented at the last colloque INCA [CFD26]. As a first step, C3SM will include the YALES2 code developed at CORIA (Rouen). This will be followed by the inclusion of most numerical tools developed by the combustion group (AVBP, AVSP, AVTP, PRISSMA). The C3SM project has received a very positive response from Cerfacs partners, confirmed by several requests to use it : SAFRAN for N3S-Natur, ONERA for the code CEDRE. This success goes beyond CFD, with a request from CNES to use C3SM for the electromagnetism code CESC developed at Cerfacs. SAFRAN will continue to support C3SM in 2012, for the first time together with automotive industry via the ”Groupement scientifique moteurs (GSM)”, for LES solutions for IC engines. CERFACS ACTIVITY REPORT 145
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CERFACS Scientific Activity Report
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Table des matières 1 Foreword xiii
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9 Publications 40 9.1 Books . . . .
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3 The OpenPALM coupler 104 3.1 Intr
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Table des figures CERFACS chart as
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TABLE DES FIGURES 6 Computational F
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Foreword Welcome to the 2010-2011 S
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CERFACS STRUCTURE CERFACS organizat
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CERFACS STAFF NAME POSITION PERIOD
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CERFACS STAFF SILVA GARZON Ph.D stu
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CERFACS STAFF NAME POSITION PERIOD
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CERFACS Wide-Interest Seminars Pete
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1 Introduction 1.1 Introduction The
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PARALLEL ALGORITHMS PROJECT success
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PARALLEL ALGORITHMS PROJECT Visitor
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3 List of Members of HiePACS HiePAC
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4 Dense and Sparse Matrix Computati
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PARALLEL ALGORITHMS PROJECT Working
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5 Iterative Methods and Preconditio
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PARALLEL ALGORITHMS PROJECT 5.5 Pre
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PARALLEL ALGORITHMS PROJECT We are
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PARALLEL ALGORITHMS PROJECT is to e
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PARALLEL ALGORITHMS PROJECT automor
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PARALLEL ALGORITHMS PROJECT 7.4 Sol
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PARALLEL ALGORITHMS PROJECT precond
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PARALLEL ALGORITHMS PROJECT 7.16 An
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PARALLEL ALGORITHMS PROJECT solutio
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8 Conferences and Seminars 8.1 Conf
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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
Page 117 and 118: DATA ASSIMILATION demonstrate that
Page 119 and 120: DATA ASSIMILATION [DA13] S. Massart
Page 121: 4 Coupling tools and HPC Climate Mo
Page 124 and 125: 2 The OASIS coupler The OASIS coupl
Page 126 and 127: THE OASIS COUPLER 2.3 OASIS4 Since
Page 128 and 129: 3 The OpenPALM coupler 3.1 Introduc
Page 130 and 131: THE OPENPALM COUPLER In the NitroEu
Page 132 and 133: 4 HPC Climate modelling 4.1 General
Page 134 and 135: 5 Publications 5.1 Conference Proce
Page 137: 5 Climate Variability and Global Ch
Page 140 and 141: 2 Climate variability and predictab
Page 142 and 143: CLIMATE VARIABILITY AND PREDICTABIL
Page 144 and 145: CLIMATE VARIABILITY AND PREDICTABIL
Page 146 and 147: CLIMATE CHANGE AND IMPACT STUDIES a
Page 148 and 149: CLIMATE CHANGE AND IMPACT STUDIES b
Page 150 and 151: PUBLICATIONS [CM15] Y. Kwon, C. Des
Page 153 and 154: 1 Introduction The CFD (Computation
Page 155 and 156: 2 Combustion The research activity
Page 157 and 158: COMPUTATIONAL FLUID DYNAMICS rate-o
Page 159 and 160: COMPUTATIONAL FLUID DYNAMICS FIG. 2
Page 161 and 162: COMPUTATIONAL FLUID DYNAMICS an iss
Page 163 and 164: COMPUTATIONAL FLUID DYNAMICS TU Ber
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Page 171 and 172: COMPUTATIONAL FLUID DYNAMICS (a) (b
Page 173 and 174: COMPUTATIONAL FLUID DYNAMICS 3.1.5
Page 181 and 182: COMPUTATIONAL FLUID DYNAMICS (a) Ve
Page 183 and 184: COMPUTATIONAL FLUID DYNAMICS The cl
Page 187 and 188: COMPUTATIONAL FLUID DYNAMICS (a) Do
Page 191 and 192: 5 Publications 5.1 Conferences Proc
Page 193 and 194: COMPUTATIONAL FLUID DYNAMICS [CFD34
Page 201: 7 Aviation and Environment
Page 204 and 205: INTRODUCTION instead of regular ker
Page 206 and 207: SIMULATIONS OF AIRCRAFT WAKES AND R
Page 212 and 213: LARGE SCALE ATMOSPHERIC COMPOSITION
Page 214 and 215: LARGE SCALE ATMOSPHERIC COMPOSITION
Page 216: 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