35 KB405 KB39 KB199920252002Marn, JureRamšak, MatjažTernik, PrimožŽunič, Zoran13 straniletnik:48številka:5str. 244-256ISSN:0039-2480COBISSID:5446939URN:URN:NBN:SI:doc-172HW4QKenslAssociation of Mechanical Engineers and Technicians of Slovenia et al.Zveza strojnih inženirjev in tehnikov Slovenije et al.Strojniški vestnikanalize numeričneautomotive industryavtomobilska industrijadinamika tekočinkomore lakirnelakiranjenumerična analizatok tekočinturbulencaTokovne razmere v avtomobilski lakirnici: numerična in eksperimentalna analiza| Flow conditions in an automotive spray-paint chamber: numerical and experimental analyses|This paper deals with the flow analysis around a car in a spray-paint chamber.To solve Navier-Stokes equations for 3D flow of an incompressible and isothermal fluid we used the control-volume method (CFX 5.4). The numerical procedure, the boundary and initial conditions, the methods used for stabilizing the numerical oscillations as well as the other parameters important for the numerical procedure are described in detail. Result for 2D and 3D calculations are presented. The boundary conditions were determined with measurements in a real chamber with and without a car. The filter in the chamber was considered to be porous matter with a quadratic law of resistance,this is in accordance with the manufacturer's data that were verified with pressure-loss measurementsV prispevku smo analizirali tokovne razmere v avtomobilski lakirni komori. Za reševanje Navier-Stokesovih enačb prostorskega toka nestisljive izotermne tekočine smo uporabili metodo nadzornih prostornin (CFX 5.4). Podrobno smo opisali potek izračuna, uporabljene robne in začetne pogoje, uporabljene metode za stabilizacijo numeričnih nihanj ter druge parametre, pomembne za izračun. Predstavili smo rezultate za ravninski in prostorski primer izračuna. Robni pogoji so bili določeni z meritvami na realni komori in to za primer brez avtomobila in z njim. Filter komore je bil upoštevan kot porozna snov s kvadratno funkcijo upora po podatkih proizvajalca, ki smo jih preverili z lastnimi meritvami padca tlakovTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Ljubljani, Fakulteta za strojništvo