Tokovne razmere v avtomobilski lakirnici: numerična in eksperimentalna analiza

Jure Marn (Author), Zoran Žunič (Author), Matjaž Ramšak (Author), Primož Ternik (Author)

Abstract

V 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 tlakov.

Keywords

analize numerične;avtomobilska industrija;dinamika tekočin;komore lakirne;lakiranje;numerična analiza;tok tekočin;turbulenca

Data

Language:	Slovenian
Year of publishing:	2002
Typology:	1.01 - Original Scientific Article
Organization:	UM FS - Faculty of Mechanical Engineering
Publisher:	Association of Mechanical Engineers and Technicians of Slovenia et al.
UDC:	667.644.3:532.525:519.61/.64
COBISS:	5446939
ISSN:	0039-2480
Parent publication:	Strojniški vestnik
Views:	226
Downloads:	75
Average score:	0 (0 votes)
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Other data

Secondary language:	English
Secondary title:	Flow conditions in an automotive spray-paint chamber: numerical and experimental analyses
Secondary abstract:	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 measurements.
Secondary keywords:	spray-paint chamber;fluid dynamic;numerical analysis;turbulence;komore lakirne;dinamika tekočin;analize numerične;turbulenca;
URN:	URN:NBN:SI
Type (COBISS):	Not categorized
Pages:	str. 244-256
Volume:	ǂLetn. ǂ48
Issue:	ǂšt. ǂ5
Chronology:	2002
ID:	1746897