Fajl Istoriya fajlu Vikoristannya fajlu Globalne vikoristannya fajluRozmir pri poperednomu pereglyadi 800 571 pikseliv Inshi rozdilnosti 320 229 pikseliv 640 457 pikseliv 1024 731 pikseliv 1270 907 pikseliv Povna rozdilnist 1270 907 pikseliv rozmir fajlu 85 KB MIME tip image png Vidomosti pro cej fajl mistyatsya na Vikishovishi centralizovanomu shovishi vilnih fajliv multimedia dlya vikoristannya u proektah Fondu Vikimedia Opis fajlu Ye vektornij variant cogo zobrazhennya SVG Jogo slid vikoristovuvati zamist ciyeyi rastrovoyi versiyi dlya bilsh yakisnogo vidobrazhennya File Airflow Obstructed Duct png File N S Laminar svg Shob diznatisya bilshe pro vektornu grafiku prochitajte stattyu Peretvorennya zobrazhen u format SVG Takozh dostupna informaciya pro pidtrimku formatu SVG u MediaWiki Na inshih movahAlemannisch Bahasa Indonesia Bahasa Melayu British English catala cestina dansk Deutsch eesti English espanol Esperanto euskara francais Frysk galego hrvatski Ido italiano lietuviu magyar Nederlands norsk bokmal norsk nynorsk occitan Plattduutsch polski portugues portugues do Brasil romană Scots sicilianu slovencina slovenscina suomi svenska Tiếng Việt Turkce veneto Ellhnika belaruskaya tarashkevica blgarski makedonski nohchijn russkij srpski srpski tatarcha tatarca ukrayinska ქართული հայերեն ব ল தம ழ മലയ ള ithy 한국어 日本語 简体中文 繁體中文 עברית العربية فارسی OpisAirflow Obstructed Duct png A simulation using the navier stokes differential equations of the aiflow into a duct at 0 003 m s laminar flow The duct has a small obstruction in the centre that is parallel with the duct walls The observed spike is mainly due to numerical limitations This script which i originally wrote for scilab but ported to matlab porting is really really easy mainly convert comments gt and change the fprintf and input statements Matlab was used to generate the image Matlab script to solve a laminar flow in a duct problem Constants inVel 0 003 Inlet Velocity m s fluidVisc 1e 5 Fluid s Viscoisity Pa s fluidDen 1 3 Fluid s Density kg m 3 MAX RESID 1e 5 uhh residual units yeah deltaTime 1 5 seconds Kinematic Viscosity fluidKinVisc fluidVisc fluidDen Problem dimensions ductLen 5 m ductWidth 1 m grid resolution gridPerLen 50 m 1 gridDelta 1 gridPerLen XVec 0 gridDelta ductLen gridDelta YVec 0 gridDelta ductWidth gridDelta Solution grid counts gridXSize ductLen gridPerLen gridYSize ductWidth gridPerLen Lay grid out with Y increasing down rows x decreasing down cols so subscripting becomes y x sorry velX zeros gridYSize gridXSize velY zeros gridYSize gridXSize newVelX zeros gridYSize gridXSize newVelY zeros gridYSize gridXSize Set initial condition for i 2 gridXSize 1 for j 2 gridYSize 1 velY j i 0 velX j i inVel end end Set boundary condition on inlet for i 2 gridYSize 1 velX i 1 inVel end disp velY 2 gridYSize 1 1 Arbitrarily set residual to prevent early loop termination resid 1 MAX RESID simTime 0 while deltaTime count 0 while resid gt MAX RESID amp amp count lt 1e2 count count 1 for i 2 gridXSize 1 for j 2 gridYSize 1 newVelX j i velX j i deltaTime fluidKinVisc gridDelta 2 velX j i 1 velX j 1 i 4 velX j i velX j 1 i velX j i 1 1 2 gridDelta velX j i velX j i 1 velX j i 1 velY j i velX j 1 i velX j i 1 newVelY j i velY j i deltaTime fluidKinVisc gridDelta 2 velY j i 1 velY j 1 i 4 velY j i velY j 1 i velY j i 1 1 2 gridDelta velY j i velY j i 1 velY j i 1 velY j i velY j 1 i velY j i 1 end end Copy the data into the front for i 2 gridXSize 1 for j 2 gridYSize 1 velX j i newVelX j i velY j i newVelY j i end end Set free boundary condition on inlet dv x dx dv y dx 0 for i 1 gridYSize velX i gridXSize velX i gridXSize 1 velY i gridXSize velY i gridXSize 1 end y velocity generating vent for i floor 2 6 gridXSize floor 4 6 gridXSize velX floor gridYSize 2 i 0 velY floor gridYSize 2 i 1 0 end calculate residual for conservation of mass resid 0 for i 2 gridXSize 1 for j 2 gridYSize 1 mass continuity equation using central difference approx to differential resid resid velX j i 1 velY j 1 i velX j i 1 velX j 1 i 2 end end resid resid 4 gridDelta 2 1 gridXSize gridYSize fprintf Time 5 3f t log10Resid 5 3f n simTime log10 resid simTime simTime deltaTime end mesh XVec YVec velX deltaTime input nnew delta time end Plot the results mesh XVec YVec velX Chas stvorennya 24 lyutogo 2007 data zavantazhennya originalnogo fajlu Dzherelo Pereneseno z en wikipedia na Vikishovishe Avtor User A1 z anglijska Vikipediya Licenzuvannya Public domain Public domain false falseCya robota bula peredana u suspilne nadbannya yiyi avtorom User A1 z anglijska Vikipediya Ce zastosovuyetsya po vsomu svitu U deyakih krayinah ce ne mozhe buti yuridichno mozhlivo v takomu vipadku User A1 daye kozhnomu pravo na vikoristannya ciyeyi roboti dlya bud yakih cilej bez bud yakih umov yaksho taki umovi ne vimagayutsya za zakonom Public domain Public domain false falseZhurnal zavantazhen lokalnogo fajlu Originalna storinka opisu znahodilas tut Usi nizhchezaznacheni imena koristuvachiv stosuyutsya en wikipedia 2007 02 24 05 45 User A1 1270 907 8 86796 bytes A simulation using the navier stokes differential equations of the aiflow into a duct at 0 003 m s laminar flow The duct has a small obstruction in the centre that is paralell with the duct walls The observed spike is mainly due to numerical limitatioPidpisiukrayinskaDodajte odnoryadkove poyasnennya sho same reprezentuye cej fajlOb yekti pokazani na comu fajlizobrazhuyestatus avtorskih pravzahisheno avtorskimi pravami prisvyacheno suspilnomu nadbanni vlasnikom avtorskih pravlicenziyareleased into the public domain by the copyright holder anglijskadata stvorennya zasnuvannya24 lyutogo 2007MIME tip internet vmistuimage pngkontrolna suma44c13ef5152db60934799deeb8c6556bfa2816e6sposib viznachennya SHA 1rozmir danih86 796 bajtvisota907 pikselshirina1270 piksel Istoriya fajlu Klacnit na datu chas shob pereglyanuti yak todi viglyadav fajl Data chasMiniatyuraRozmir ob yektaKoristuvachKomentarpotochnij15 52 1 travnya 20071270 907 85 KB Smeira Information Description A simulation using the navier stokes differential equations of the aiflow into a duct at 0 003 m s laminar flow The duct has a small obstruction in the centre that is paralell with the duct walls The observed spike is mainly Vikoristannya fajlu Taka storinka vikoristovuye cej fajl Diferencialni rivnyannya Globalne vikoristannya fajlu Cej fajl vikoristovuyut taki inshi viki Vikoristannya v anp wikipedia org गण त Vikoristannya v ar wikipedia org معادلة تفاضلية Vikoristannya v ba wikipedia org Differencial tigeҙlәmә Vikoristannya v bg wikipedia org Matematika Vikoristannya v bn wikipedia org ব যবকলন য সম করণ Vikoristannya v ca wikipedia org Calcul infinitesimal Matematiques Vikoristannya v ckb wikipedia org ماتماتیک Vikoristannya v cs wikipedia org Matematika Vikoristannya v de wikipedia org Diskussion Differentialgleichung Vikoristannya v en wikipedia org User Vufors Wikipedia WikiProject Chemical and Bio Engineering User User A1 uploaded images Talk 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Equacao de Laplace Equacao diferencial parcial Equacao de Poisson Equacao do calor Lema de Gronwall Teorema de Picard Lindelof Metodo de Runge Kutta Equacao de Mason Weaver Equacao do pendulo Equacao de onda Pereglyanuti storinku globalnogo vikoristannya cogo fajlu