condensablewww.meansys

1EcosimPro·NewsletterN6·July2012www.
ecosimpro.
comteststhatwouldotherwisebeneeded.
EAhasparticipatedwithitsPROOSIStool,inwhichnewcapa-citieshavebeencreatedsothatmodelscanbeexportedasblack-boxtoimprovetheinteractionamongpartners.
Ithasalsobeenequippedwithasophisticatedoptimisationtoolsothatmodelscanbeoptimisedwithouthavetorelyonexternalsoftwareashadpreviouslybeenthecase.
AnotherenhancementhasbeentomakePROOSISmodelseasiertoexecutefromotherSimulationWorkflowtoolswidelyusedintheaeronauticsindustry.
Onotherfronts,weshouldmentionthespacesimulationcon-ferenceheldinBordeauxinMaybytheAssociationAéronauti-queetAstronautiquedeFranceincollaborationwithESAandCNES.
EcosimProwastherewithastandwhereweweregivingdemonstrationsontheESPSSjetpropulsionlibrariesandEco-simPro.
Wewerealsofortunateenoughtoattendsomefascinatingpre-sentationsgivenbyEuropeancompaniesthathavedevelopedmodelsinEcosimProwithintheframeworkofconcretepro-jectsonaerospacesimulation.
Wesawhowusershavebeenabletomodelcomplexpropulsionsystemsandvalidatethemodelsusinganumberofdifferenttechniques.
ThisnewsletteralsoreportsonthenewversionsofEcosimProV5.
0andPROOSIS3.
0thatwerereleasedthisJune.
Webelievethesenewversionsareasignificantstepforwardforallofus,sincetheyincludeprofoundchangesontheinternallevelofsomepartsofthetool,suchasallthesoftwareforcreatinggra-phicsinthemodels,whichhasbeenfullyoverhauledandisnowmuchmorerobust,powerfulandefficient.
Thisnewversionalsoincludesnewcapabilitiesmanyofourusershadbeenrequesting,suchastheabilitytoworkasateamviatheconnectiontoaConfigurationControlsoftwareprogram(doneinSubversion),aswellasencryptinglibrariesandreadingASCIIandXMLfilesfromthetoolitself.
Webe-lieveallthesenewfeaturesandthemanyotherspresentinthenewversionwillmaketheday-to-daytasksofsimulationmucheasier.
Again,wetrulyhopeyoufindthisnewsletterinterestinganduseful,andwewelcomeanysuggestionsyoumayhaveforup-comingissues.
PedroCobasHerreroHeadoftheDevelopmentTeamofEcosimPro/PROOSISThatsimulationisagrowingdisciplineisawell-knownfacttoeveryoneworkinginthefieldofengineering.
Withtoday'ssi-mulationtoolsandpowerfulnewprocessors,complexsystemscannowbesimulatedthatwereunthinkableafewshortyearsago.
Intheend,thevalueaddedfromsimulationisbeingabletodesigntheproductsbetterfromthestartandtosavetimeandmoneyontheproductionline.
Asanexampleofthisconcept,EmpresariosAgrupados(EA)isparticipatingintheEuropeanaeronauticsprojectCRESCEN-DOintheEuropeanUnion'sVIIFrameworkProgrammealongwith58othersimulationsoftwarebusinesses,universitiesandaeronauticscompaniesinEurope.
ThisprojectisheadedbyAir-busandfeaturesthemainactorsintheEuropeanaeronauticsindustrysuchasRolls-Royce,Snecma,Volvo,Thales,EADS,etc.
Themainaimoftheprojectistocreatetoolsthatcanbeusedtoshareandre-usesimulationmodels,data,userrequi-rements,etc.
toimprovethedesignprocessesofnewaircraftandengines.
Alltheparticipantsintheprojectagree:systemssimulationfromaveryearlystageinaircraftdesignhelpstoreducethetimesandcostsofdesigningthesystemsbyvalida-tingmanydifferentdesignalternatives,usingoptimisationte-chniquestofindoptimalsolutionsandhavingbehaviourmo-delsoftheaircraftandenginesbeforetheyaremanufactured,therebysavingconsiderablemoneyonthesubsequentphysicalEDITORIAL2EcosimPro·NewsletterN6·July2012www.
ecosimpro.
comLATESTNEWSECOSIMPRONewversionsofEcosimproandPROOSISLastJune14sawthelaunchofthenewofficialversionsofEcosimPro5.
0andPROOSIS3.
0.
Thesenewversionsofthetwoprogramsrepresentasignificantmilestone:theyincludeanumberofimprovementstothetoolacrosstheboard,givingitgreatercapacityandflexibilitytomodelandsimulatecomplexsystems.
Someofthenewfeaturesincludethefollowing:-Abrandnewgraphicmodellingtooltomake2Dschematicdia-gramsmorequicklyandflexibly.
Considerableimprovementhasalsobeenmadeinthequalityofthefinalgraphicsoftheiconsandothergraphicelements.
Itincludesnewfeaturessuchasla-belledconnectionstoavoidsimplifyingtheviewofcomponentswithmultipleconnections,sub-categoriesinlibrariestoclassifytheicons,etc.
-AdirectconnectiontotheSubversion-Tortoiseconfigurationcontroltoolthatnoticeablyenhancestheteamworkingcapaci-tiessinceitcanbeusedwithacommondatabaseoflibrariessoeachusercangetthelatestversionofthem,makechangesandcontrolalltheversionsofthelibrary,componentfiles(.
etand.
eds),partitions,experimentsandanyotheradditionalfileusedinthelibrary.
-Newinternalarchitectureofthesimulationmonitor,morepowerfulthanthepreviousoneandmoreflexibleforfollowingupthesimulation.
-CapacitytoworkwiththenewMicrosoftC++2010compilerthatcanbecomeupto50%fasterthanpreviousversions.
-GenerationofsimulationresultsininternationalbinaryformatHDF5.
Theusercannowuseothertoolstoperformastudyofthefilegeneratedbyasimulation,sinceHDF5isaformatusedbyagreatmanyorganisationsandvisualisationtools.
-Encryptionoflibraries.
Theusermayofferalibraryinencryp-tedformattopreventtheenduserfromseeingthesourcecode.
-NewclassesforreadingandwritingXMLfilesfromthetool.
Inaddition,newclassesforreadingASCIIfilesfromELsimplyandintuitively.
InearlierversionsthishadtobedoneinexternallibrariesinC/C++orFORTRAN,whereasthisversioncandoitdirectlyinthetool.
EcosimProbroadensitspresenceinKoreaSamsungElectronicsCo.
askedtheEcosimProgrouptodoare-ferencecaseconsistingofsimulatingaprocessofdepressurisingcarbondioxideinsupercriticalconditions.
Asaconsequenceofthegoodresultsobtained,SamsungElectronicsnowhasalicenseforEcosimProandtheFLUIDAPROprofessionallibrariestorunsimulationsoftheirsystems.
Likewise,otherKoreancompanieshaveexpressedinterestinEcosimProintheareaofmodellingre-verseosmosisdesalinationplants,andvarioustestcaseshavealsobeenrun.
Thisnewareaofmodellinghasbeenperformedsuc-cessfullyinotherindustrialprojects.
ItisthusexpectedtobecomeanewareaofgeneralapplicationinEcosimPro.
EcosimPropresentatITERTritiumSeminarOnJune13,theEcosimProteamwenttotheindustryseminarPROOSIS3.
03EcosimPro·NewsletterN6·July2012www.
ecosimpro.
com"TechnologiesfordesigningcomponentsandsystemsofITER'sTritiumPlantandindustrialopportunities"heldinBarcelonaonJune12and13.
Theseminarbroughttogetheragreatnumberofworldexpertsontritiumsystems,frombusinessaswellasfromresearchcen-tres.
TheseminaranalysedtheextentofdefinitionofthetritiumsystemsinITERaswellasthedevelopmentsmadesofarandthepotentialcoursesforfuturework.
EA'scontributiontothisseminarfocusedonshowingthelibrariesdevelopedwithEcosimProandtheirusefulnessinsimulatingsys-temsinvolvinghydrogenisotopes,whichcanbeestablishedalongtwolines:theanalysisoftheprocessesofdiffusionandtransferofisotopesandthecreationofmodelsofthesystemsforextractingandpurifyingtritiumcurrents.
AsexamplesofthecapabilitiesofEcosimProandthetritiumli-braryinthisfield,afewvalidationandverificationcaseswerepre-sentedthatshowcasedthesuitabilityoftheiruseaswellasothermodelsdonetoanalyseITER'sTestBlanketModule(TBM)andsomesystemsforextractingandpurifyingcurrentsthatmaybeusedasthebasisformodelsoftheTritiumPlant,dependingonthehowdefinedthesystemsare.
NewversionoftheESPSS2.
4librariesDevelopedbyEAIfortheEuropeanSpaceAgency(ESA),theESPSS(EuropeanSpacePropulsionSimulationSoftware)librariesformasetoflibrariesforEcosimProtosimulateliquidfuelpro-pulsionsystemsinspace.
Phase3oftheproject,inwhichEAIisthemaincontractor,isbringinginnewfeaturestotheESPSS,suchas:-Enlargingtheexistinglibrarieswithnewphysicalphenomena(e.
g.
,filmboiling,absorptionanddesorptionofnon-condensablegases)-Proposalandstudyofcasesofvalidation-Newlibraryfordesigncalculation(directstationaryevaluation)-NewlibrarycalledSATELLITE,tosimulatethetrajectorymo-vementandattitudeofasatellite,andcalculateaccelerationsonthetanks-NewlibraryofElectricalPropulsionDuringthedevelopmentofPhase3,anewstableversionofthelibrarieshasbeenreleased,ESPSS2.
4,availableforallusers.
ThisnewversionincludesseveralnewcapacitiesthatwereposedinPhase3,andvariousbugshavebeenfixed,whichmakesthisver-sionmuchmorerobustandthesimulationsmuchfaster.
TheseimprovementshavebeenpossiblethankstofeedbackfromESPSSusers(ESA,Astrium,OHB,tonameafew),totheaccumulatedexpertiseofEAIinsimulationsofthesesystemsandtothestudyofdifferentcasesofvalidationposedinPhase3oftheproject.
EnhancementstoTHERMAL_BALANCElibraryTheThermal_Balancelibraryhasnowhadsomeofitscompo-nentsmodifiedtoachieveaneasier,morestreamlinedsystemofgeneratingequations.
ModelofcryogenicrocketengineHM7B(Ariane5ECA)4EcosimPro·NewsletterN6·July2012www.
ecosimpro.
comTheopeningsessionwasattendedbykeyfiguresfromspaceagen-ciesandbusinessesinthesector.
Alongsidethepresentationstherewasanexhibitionareafeaturingaround20standsfromvariouscompaniesshowcasingtheirproducts.
EAtookpartinboth,presentingpapersonsimulationworkaswellashostingastand.
JoseMoralgaveapaperbasedonafi-naldegreeprojectbyJoseAmer,whohadinternedatEA,titled"AdaptationoftheESPSS/EcosimProplatformforthedesignandanalysisofliquidpropellantrocketengines".
StefanoNan-cleiro,fromIberespacio,gaveapapercalled"SmallGEOXenonpropellantsupplyassemblypressureregulatorpanel:testresultsandcomparisonwithEcosimPropredictions".
OnMay8,ESAhostedaworkshopforallEuropeanESPSSusers,EAandESA.
PedroCobas,fromEA,presentedthenewcapabili-tiesofEcosimPro5.
0,andJoseMoralpresentedthelatestfeaturesofthepropulsionlibraryinEcosimPro/ESPSSVersion2.
4,whileFrancescodiMatteofromESApresentedtheenhancementsbeingdoneinPhaseIIIandJohanSteelantfromESA,gaveanoverviewonthestatusofESPSSanditsfuture.
Afterwards,severallibraryuserssuchasThales-Alenia,EADS,As-trium,VonKarmanInstitute,Kopoos,etc.
gavevariousindustrialpresentationsdonewiththetoolandconcludedwithasuggestionssessioninwhichusersmadeanumberofproposalsfornewim-provementsforupcomingversions.
ItwasalsodecidedtoholdayearlyworkshopforusersofEcosimPro/ESPSS.
Thiswasdonebypreventingsomeequationsfrombeingre-or-dered,mainlybydefiningsomeofthevariablesasEXPLICIT(forexample,pressuredropcoefficientsinpiping,secondarybranchesindividers,etc.
)aswellasothermodificationstopre-venttheflowfromreversing,suchastheuseofnon-returnvalvesinthepipes.
Furthermore,themodelsandtheresultsarenoweasiertovieweitherbyusingtheLabelsoptionintheschematics,bygeneratingmacro-components(HPandLPturbineblock)or,whenrunningtheexperiment,bytheGSEschematics.
EcosimPro/ESPSSattheEuropeanSpacePropulsionConferenceinBordeauxEcosimProwaspresentatthethirdeditionoftheEuropeanSpacePropulsionConferenceheldinBordeauxthisyearfromthe7thto10thofMay.
OrganisedbytheAssociationAéronautiqueetAs-tronautiqueofFranceincollaborationwiththeEuropeanSpaceAgencyandCNES,theeventwasattendedbymorethan400delegatesfromdifferentorganisationsintheworldspacesec-torsuchas,ESA,NASA,DUR,ASI,CNES,EADS-ASTRIUM,SNPE,MOOG,AMPAC,ALTASpace,etc.
Alargenumberofhigh-calibrepapersweregivenregardingaerospacepropulsionsystems.
ThepresentationswereheldinparallelsessionsandtookplaceintheBordeauxConferenceCentre.
PROOSISstandatthe2012PropulsionConference(Bordeaux)SchematicdiagramofpowerplantthermalbalancewithEco-simPro/THERMAL_BALANCE5EcosimPro·NewsletterN6·July2012www.
ecosimpro.
comOverthefourdaysconferenceseveraldemonstrationsofEcosim-Pro/ESPSSweregivenattheEcosimProstandtoanumberofcompaniesinterestedintheproduct.
Thenextconferencewillbeheldin2014.
EuropeanCrescendoprojectforuminToulouseApublicforumoftheEuropeanCRESCENDOprojectwasheldinToulouse(France)onJune19,20and21,2012.
ThisprojectbelongstotheVIIEuropeanFrameworkProgram-meandisledbyAirbus.
Fifty-nineEuropeanorganisationstookpartrepresentingtheaeronauticsworld:aerospacecompanies(e.
g.
Airbus,Snecma,Rolls-Royce,Volvo,MTU,EADS,etc.
),simula-tionsoftwarecompanies(e.
g.
,EA,Dassault,ANSYS,LMS,MSC,etc.
,anduniversities(e.
g.
Cambridge,Belfast,Athens,etc.
).
Theaimoftheprojectistocreatenewtoolsandstandardsintheworldofsimulationofaeronauticsystems.
Agreatnumberofpaperswerepresentedbyprojectparticipantsoverthethreedays,suchasadetaileddescriptionoftheconceptoftheBehaviouralDigitalAircraft(BDA).
TheBDAwillmakeitpossibletostoreandsharemodelsinafe-deratedwaybythelifecycleofanaeronauticalproduct.
TheBDAismadeupofaModelStoretostoremodelsanddata,toolsoftheSimulationFactoryforcreatingsimulationworkflowsandQualityLabtoolsforvalidatingthemodels.
Theaimsoftheprojectarequiteambitious,sincetheideaistoappreciablyreducetheeffortrequiredinthedesignofnewaircraftandenginesbyreusingmodels,reducingthephysicaltests,etc.
EAparticipatedinthisprojectwithitsPROOSISproduct,andhasworkedonseveralworkpackages.
Forexample,alongwithSnecmaandIntespace,EApresentedaPROOSISconnectiontotheDynaworkstestdatabasetohelpfitmodelsmoreeffi-cientlysinceitdirectlyconnectsthemotorperformancemodelandtherealtestdata,therebygivingafasterfitwiththepara-meters.
Inaddition,EApresentedanotherpaperwithTurbomeca,Euro-copterandtheUniversityofAthensonimprovinghowtoexportperformancemodelsofanaeronauticalenginesuchasablackboxandthecreationofapowerfuloptimizationtoolintegratedintoPROOSIS.
TheexamplepresentedwastheoptimisationoftheparametersoftheenginemodellingamodelofhelicopterinPROOSISandsettingatypicalmissionforthehelicoptertocarryout.
CollaborationbetweenEAandCIEMAT:GRANT254EAisparticipatingwithCIEMATinGrant254,aprojectlaunchedbyFusionForEnergy(F4E)whoseaimistomodelTritiumtransportandconceptualdesignoftheauxiliarysystemsoftheTestBlanketproposedbyEurope(TritiumMigrationmodellingandconceptualdesignoftheTritiumaccountancysystemsfortheEuropeanTestBlanketSystems).
ThemodellingtoolsusedincludedTMAP(TritiumMigrationAnaly-sisProgram),anindustryleadingtoolforcalculatingtransportofhy-drogenisotopes,andEcosimPro.
AlibraryhasbeendevelopedinEcosimProtovalidatethissoftwareinregardstoTMAPbycarryingoutverificationcaseswithbothanalyti-calandexperimentalsolutionsalike.
TheresultshavebeensatisfactoryandEcosimProisnowsituatedasthepossiblesimulationtoolformodellingthetwoTBM(TestBlanketModule)configurationsproposedbyEuropeforITER(HCLL:He-liumCooledLithiumLeadandHCPB:HeliumCooledPebbleBed)aswellastheauxiliarysystemsforTritiumextraction.
ThereisalreadyamodelofHCLLavailableinEcosimProthatwillsoonbeassessedbyF4E.
ThefinalaimisforEcosimProtodevelopthecomponentsneededformodellingtheTBMandauxiliarysystemsthatletF4EmakeaconceptualdevelopmentoftheprocessandkeeptrackoftheTritiuminventoryatalltimes.
SimulatorofParabolicDishSolar-ThermalPowerPlantsAsimulatorhasbeendevelopedinEcosimProforasolar-ther-malpowerplantwithparaboliccollectorsinordertostudythetypicaltransientsofthistypeofpowerplants:startup,shutdown,6EcosimPro·NewsletterN6·July2012www.
ecosimpro.
compassingclouds,atripinsomeequipment,etc.
Amongtheirmainapplicationsisthetrainingofoperatorsandengineersinope-ratingtheplant,thesupportindevelopingtheengineeringoftheplantandcheckingthelogicsandcontrolsequencesbeforestartup(virtualcommissioning).
Thesimulationmodelrepresentsthetransientbehaviourofthefollowingpartsofthesolar-thermalplantusingparaboliccollec-tors:SolarfieldHeatTransferFluid(HTF)CircuitSteamgenerationunitsSteamcycleandcirculatingwatersystemControlsequencesandloopsandplantoperatingmodesThemodelsofequipmentarebasedonequationsofconser-vationofmass,energyandmotionandthedatafromthespe-cificationsheetsoftheequipment(geometricdata,datafromoperatingpoints).
Themodelalsoincludessimulatingtheweatherconditions:in-tensityofdirectsunlight,windspeed,etc.
Shownnextaretheresultsfromthesimulationofplantstartuponasummerdaywithlittlecloudiness.
Ithasbeenassumedthatsaidstartupispartiallysupportedbyaboilerasthefieldisfocu-sedwhensunriseisdetected.
TheincreaseinHTFflowthroughthesystemisstaggeredasaparticulartemperatureisreachedintheloop.
ThesimulationmodelwasusedtogenerateanOPCserver(Ob-jectLinkingandEmbeddingforProcessControl)thatwasthenconnectedtooneoftheplant'sSCADAsystems.
OPCisanin-dustrialcommunicationsstandardforsharingdataamonganyhardwareandsoftwaresystemsthathavethatinterface.
Thesimulator'sSCADAsystemconsistsof6controldisplayscreensshowingthemainsystemsmakingupaparabolictroughsolar-thermalplant:SolarFieldSteamgenerationunitsHTFpumpsandflashtanksPartofthehighpressuresteamcyclePartofthelowpressuresteamcycleOverviewoftheentiresolarplantTheSCADAprogramwasdevelopedbytheCentroTecnológicoAzucarero(CTA)inconjunctionwiththeUniversityofVallado-lid,andisimplantedatanumberofsugarrefineries.
ItisaPC-basedsystemwithWindowsOS,withanOPCcommunicationssystemforsynchronisedandreal-timeoperationofthesoftwaremodules:Dynamicsimulationoftheprocess,operatorandins-tructorconsolesandcommunicationssystemaspertheOPCstandard.
Itsmainfunctionalitiesinclude:NavigationbetweenthevariousfunctionaldiagramsVisualizationofthemostimportantsystemvariablesModificationofcontrolvariables,actuatorpositionsandope-ratingmodesGenerationofalarmsSelectionofpre-definedtrainingsessionsActivationanddeactivationoffaultsintheprocessControlofthesimulationspeedThemodularobject-orientedstructureimplementedinthesi-mulatormakesitflexibleandportable.
ItcanberunfromaPCandthesimulationmodelcaneasilybemodifiedorimprovedtoFlowofmainsteamandreheatsteamElectricaloutputFunctionaldiagramoftheoverviewoftheplantFunctionaldiagramofthesolarfield7EcosimPro·NewsletterN6·July2012www.
ecosimpro.
comadaptittoanotherplantconfigurationorincludenewcontrolstrategiesandoperatingsequences.
Thistoolcanbeofgreatusetoengineersandoperatorsofsolar-thermalplantsintermsoftrainingaswellasengineeringandoperatingtasks.
EcosimProatCryogenicsConferenceinFukuoka(Japan)The24thInternationalCryogenicsConferencewasheldthisyearinFukuoka(Japan)fromthe14thtothe18thofMay.
Morethan570expertsandconference-goersfromresearchcentres,univer-sitiesandindustriesaroundthewordtookpartinthedifferentsessions.
TheconferencespresentedthelatestdevelopmentsinthisareaandanalysedthedifficultiesofaspectsofparticularrelevancesuchastheITERcryogenicssystem.
EApresentedthenewlibraryCRYOLIBbasedonEcosimProformodellinglarge-scalecryogenicsystems,anddevelopedincollaborationwithCERN.
Furthermore,the"shortcourses"gi-venattheconferenceincludedoneonusingEcosimProtomo-delandsimulatecryogenicsystems,anditshowedthegreatuse-fulnessindesigningthemaswellasforoptimisingtheircontrolsystembycommissioning,operatortraining,etc.
Inaddition,theposterssessionfeaturedaposterpresentedwithCERNonthemaincharacteristicsofthelibraryanditsapplica-tiontomodellingthecoolingsystemoftheLargeHadronColli-der(LHC)atCERN.
SeveralEcosimProusersalsopresentedtheirworksdoneusingthistool.
WilliamBooth(CERN)gaveapostertitled"DynamicsimulationoftheITERheliumcryogenicsystemunderpulsedheatloads",inwhichtheyanalysedtheresultsofseveraldiffe-rentcontrolstrategiesonthemodelofa2.
5kWITERcoolerat4.
5Kwithadistributionsystemand4auxiliarycoldboxes,asdevelopedinEcosimPro.
ChristineHoa(CEA)presentedapostercalled"Dynamicmo-delingofaforcedflowsupercriticalheliumloopwithEcosim-Pro"inwhichsheanalysedthedynamicbehaviourofHELIOSinoperation.
HELIOSisanexperimentalfull-scalereproductiondevelopedbyCEAforthecoolingcircuitofthemagnetsforthetokamakJT-60SA.
MsHoaalsotookpartinthepresenta-tionssessionwithapapercalled"Experimentalinvestigationsforsmoothingpulsedheatloadsoncryogeniccircuitsofsuper-conductingmagnetsinJT-60SAtokamak".
Alongsidethepresentationstherewasanexhibitionareawith47standsfromdifferentcompaniesshowcasingtheirproducts.
EAalsotookparttherebygivinglivedemonstrationsofEcosimProwiththenewlibraryCRYOLIBtoconference-goersinterestedintheproduct.
JournalstakeinterestinEcosimProInrecentmonths,EcosimProhastakenthespotlightinanumberofspecialissuesdedicatedtofuelcellsanddesalinationplants.
JournalssuchasMetallurgyandElectricity,ElectronicsandCommunicationsandInfoenvirohaveincludedfeaturesontheuseofEcosimProinthisfieldsandonthemanyadvantagesofusingthesimulationtooptimisesafetyandperformance.
Bothtopicshavealsobeenpublishedinalargenumberofge-neralandsectorialmediasuchasInterempresas,Inmodiario,Ecoticias,EfikosNews,TecnologíaAmbiental,MadridActual,Innovanoticias,Globedia,Techweek,RevistaMedioambiente,Itcio.
FurthermoreElEconomistawebsitefeaturedabookre-viewon"IntroductiontomodellingwithEcosimPro",joinedbynewsininternationalmediasuchasEngineerliveandNews-today.
Photoofthestand8EcosimPro·NewsletterN6·July2012www.
ecosimpro.
comCERNannouncesthepossiblediscoveryoftheHiggsbosonafteranexperimentattheLHCOnJuly4,2012,CERNannouncedtothepressthattheymayhavefinallydetectedtheHiggsboson,aftermanyyearsofun-successfulattempts.
Thetwomainexperiments(ATLASandCMS)announcedtheobservationofanewparticlethatis"consistentwiththeHiggsboson",withamassofaround125GeV/c2.
AttemptswillbeInstallationoftheworld'slargestsilicontrackingdetectorintheCMSexperiment.
(MichaelHoch,CERN)madeoverthecomingmonthstoconfirmthattheparticlede-tectedisinfacttheelusiveboson.
Asmentionedinapreviousnewsletter,EcosimProwasusedbyCERNtomodelandtosimulatethecryogenicsystemoftheentirecoolingloopoftheLHC,whichservedtovalidatethesystemandtooptimizethecontrollogic,andisbeingusedtodayforsimulationandtrainingoftheLHCplantoperators.
CERNandEAarebuildingacommercialcyrogeniclibraryna-medCRYOLIBwhichisexpectedtobereadyattheendofJulyforuseatothersimilarinstallations.
9EcosimPro·NewsletterN6·July2012www.
ecosimpro.
comThenewversionofEcosimPro/PROOSISprovidesatoolforcontrollingthesourcecode(SCC).
Thisnewfeaturefacilitatesco-llaborativeworkbetweentwoormoreusersaswellaskeepingcontroloverchangesmadetothecodethroughouttheproject.
Thisfeatureissupportedatboththefunctionalandgraphiclevel,withtheconnectionbeingestablishedonlyastheclient.
TheuserisassumedtohaveaSubVersion(SVN)repositoryinstalledandconfigured;i.
e.
,EcosimProcannotcreateormanagethereposi-tory.
Asourcecodecontrolisasystemforcontrollingchangesinfilesandformanaginghowthesefilesareshared.
Generally,itisusedonASCIIfiles,sincethedifferencesbetweenthevariousversioncanbecontrolledandcompared.
Thisdoesnotmeanthatbinaryfilescannotbeused,althoughitcanonlystatethatthebinaryfilehasbeenchangedornot,i.
e.
,itdoesnotgivethespecificdifferen-cesbetweentheversionsofbinaryfiles.
Eachuserworksinanindependentlocalcopy.
Whenthechangesarereadytobeshared(orsimplysavedforcontrolpurposes),theyareuploadedtotherepository.
Arepositoryisadatabasethatsto-resfilesalongwithanymodificationstheretoviatheproject.
Alltextfilesarecompressedbeforebeingstoredintherepository.
Furthermore,ifafileismodified,thenewversionisnotstoredcompletely,onlythepartthathaschanged.
Thisway,therepositorycanstorelargeamountsofinformationbyoptimisingtheavailablestoragespace.
Binaryfilescannotbeoptimisedthisway,sincetheymustbesavedintheirentiretyineachversion.
Wheneverachangeisuploadedtotherepository,itismarkedwithanumber.
Eachchangeiscalledarevision.
Anewrevisioniscom-parabletoageneralsnapshotoftheprojectatagiventime.
Inotherwords,arevisionisaglobalnumberthatbelongstoallthefilesintherepository,notjusttheonesthathavebeenmodified.
Initially,onlyfilescreatedbyusersshouldbeuploadedtotherepo-sitory,notfilescreatedbyEcosimPro,inotherwords,ASCIIfilesofsourcecode,setupfiles,datainputfiles,partitions,experiments,schematicdiagrams,etcaswellasbinaryfilessuchas.
libfilesofFAQs:NewtoolforLibraryConfigurationControlexternallibraries,etc.
Filesgeneratedas.
elb,.
unt,.
dll,etc.
shouldnotbeuploaded.
WithASCIIfiles,notonlycandifferencesbefound,butalso,whentwousersmodifythesamecodeatthesametime,mecha-nismscanbesettodetectandcorrectanyconflicts.
Thisfeatureisnotavailableforbinaryfiles.
Inconclusion,thefilesthatshouldbeuploadedtotherepositoryaretheonesneededtogeneratetherestofthefilesagain.
Eco-simProwillonlymanagethesecodefiles,eventhoughitofferstheoptiontouploadotherfilestypesaswell.
Thus,whenalibraryisuploadedtotherepository,itisadvisabletouseonlyEcosimProandnootherexternaltool,soastokeepfromuploadingfilesthanmaycauseproblems.
Ausermayobtainthefilesneededtoreproduceaspecificsituationfromanyspecificpointintimesimplybydownloadingthefilesassociatedwitharevision.
IntegrationinthegraphicinterfaceEcosimProhasanareawherethefilesusedbythevariousdifferentpartsoftheprogramarerepresented:configurationoflibraries,ELfiles,schematicdiagrams,partitions,experiments,etc.
Thesehaveaniconthathasbeenextendedtoencompassanothericonthatwillrepresenttherelationshipbetweenthelocalfileandthecopyintherepository.
Anitemmayhavemorethanoneassociatedfile.
Forexample,anitemmayincludethefileoftheexperimentandtheconfigurationoftheMonitorassociatedwiththatexperiment.
ExperimentswithExplorer10EcosimPro·NewsletterN6·July2012www.
ecosimpro.
comStatusofalocalfilewithrespecttotherepository.
SVNhasagreatnumberofstatusesavailablebutonlytheonesrelevanttoEcosimProhavebeenconsidered.
Thesetofstatu-sesimplementedalongwiththeiriconsareasfollows::Thelocalcopyoftheassociatedfilehasnotbeenmodified.
Thelocalcopyoftheassociatedfilehasbeenmodified.
Theassociatedfilewillbeaddedtotherepositoryafteracom-mitaction.
Theassociatedfilewillberemovedfromtherepositoryafteracommitaction.
Thereisaconflictbetweenthelocalcopyandtherepository.
Theassociatedfileisnotintherepository.
TheassociatedfileisnotintherepositoryandfurthermoreisignoredintheSCCdialogs.
Thestatusrequestisforafilethatnolongerexistslocally.
Theitemisassociatedwithseveralfileswhichhavedifferentstatu-seswithrespecttotherepository.
SCCActionsLikewiththestatuses,SVNhasagreatnumberofactionsavaila-ble.
Again,onlytheonesrelevanttoEcosimProhavebeenconsi-dered.
Theactionsavailableforeachfiledependonitsstatus.
Thewholesetofavailableactionsisasfollows:-Connecttorepo:Connectstheworkspacefileorlibrarytoarepository.
-Commit:Uploadsasetofchangestooneormorefilesasasinglerevision.
-Revert:Undoesanactiontoafile.
-Diff:Showsthedifferencesbetweenthelocalcopyofthefileandthelastversionintherepository.
-Showlog:Showsadialogwiththehistoryofthefileintherepository.
Thishistoryhasalistwiththerevisionsthataffectthefileandinformationsuchas:whomadethechan-ge,whattypeofchangewasmade,when,adescriptionofthechange,etc.
-Launchbrowser:Launchesabrowseroftherepositorythatopensinthedirectoryoftheassociatedfile.
-Checkformodifications:Checksifanyotheruserhasuploadedanymodificationofthefiletotherepository.
-Update:Updatesthefilewiththelatestversionofthere-pository.
-Editconflicts:Whenupdating,theremaybeaconflictifanotheruserhasmodifiedthesamelinesofcode.
Inthissituation,anewfilewillbecreatedwithinformationfrombothversionssothattheusercanchoosewhichpartsareva-lid.
Thisselectioncanbemadeusingtheeditconflictdialogorbyhand.
-Resolveconflicts:Oncetheuserhasresolvedtheconflict,thisactionwillunflagtheconflict.
-Add:Flagsthefileforuploadtotherepositoryinacommitaction.
-Delete:Flagsthefilefordeletionfromtherepositoryinacommitaction-Ignore:FlagsthefileforbeingignoredbytheSCCdialogs.
-Cleanup:Eliminatespotentiallyinconsistentstatusesinalocaldirectory.
Thisstatuscancomeup,forexample,ifthereareerrorsincommunicatingwiththeserver.
SCCoptions11EcosimPro·NewsletterN6·July2012www.
ecosimpro.
comAskanyEcosimProuserabouttheadvantagesofgraphics-basedmodellingwithschematicdiagramswhenitcomestocreatingto-pologicalmodels,andthevastmajoritywouldagreeontwomainaspects:howeasyitistomakethemodelsandhoweasyitistounderstandthem.
However,whenthemodelsarecomplicated,therearemoreandmorecomponentsandthetopologiesbecomehighlycomplex,viewingthembecomesmoreandmorecomplicatedaswell.
Thisiswhywehaveworkedhardtokeepthevisualsasstraight-forwardaspossibleintheselatestversionsofEcosimProbygivingFAQs:Toolsforeasierviewinginschematicdiagramstheuserthetoolsforsimplifyinghowalargemodelisdisplayed.
Thesetoolsarelayersandtextconnectors.
LayersLayersareadevicethatletstheuserdefinegroupingsofcompo-nentswithinaschematicdiagram.
Layershelpsimplifyhowtheschematicdiagramslookbysepara-tingthedisplayintologicalparts,definingtheorderofeachlayerwhencompilingthemodel,etc.
,andallwithouthavingtomodifytheunderlyingmathematicalmodel.
Withthistool,theusercanviewone,two,orallthreelayersatonce.
TextconnectorsThisnewgraphicsfeaturesimplifiestheconnectorlinesontheschematicdrawings.
Exampleofacomplexschematicdiagram3-LayerSchematicDiagramSchematicdiagramwithcomplextopology12EcosimPro·NewsletterN6·July2012www.
ecosimpro.
comLargediagramswithmanyconnectorscanbecomeatangledmessofconnectorsthattakespaceawayfromtherestofthegraphicsandmakeithardtofollowthelines.
Thatiswhytheyhavecreatedtextconnectorsthatworklikelabelstolettheuserreplaceconnectorlineswithinformationtags(cus-tomizingthetextandthestyle)thatshowwhereaconnectiongoestoandfrom.
Changingthetypeofconnectorisaseasyaseditingtheattributesoftheconnectorlineandmarkingthe"Showlabel"option.
Asthefollowingexampleshows,thetextconnectorssimplifyandenhancethelookoftheschematicsbynothavinglonglinescriss-crossingthroughthemodelgraphicsyetallwithoutanylossofinformation.
SUGERENCIASLabelledconnectionConnectioneditorSchematicdiagramwithlabelledconnectionsPleasefeelfreetosendusanysuggestionsyoumayhavefortheEcosimPronewsletter,whetherthesehavetodowithcontent,articlesorinterviewsthatyouwouldliketoseepublishedincomingissuestoinfo@ecosimpro.
com.
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