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Title:
Metoda robnih elementov za dinamiko viskoelastične Maxwellove tekočine
Authors:
ID
Škerget, Leopold
(
Author
)
ID
Požarnik, Matej
(
Author
)
ID
Županek, Tatjana
(
Translator
)
Files:
http://www.dlib.si/details/URN:NBN:SI:doc-5L0EVGAN
Language:
Slovenian
Work type:
Not categorized
Typology:
1.01 - Original Scientific Article
Organization:
FS - Faculty of Mechanical Engineering
Abstract:
V prispevku je prikazan razvoj numerične sheme na osnovi metode robnih elementov (MRE) za modeliranje ravninskih tokov viskoelastične tekočine. Kot podlaga za razvoj je namenjena shema za modeliranje nestisljivih viskoznih tokov, ki smo jo razširili in ji dodali potrebne člene za zajemanje viskoelastičnosti nenewtonovskih tekočin. Posebno pozornost smo namenili integraciji ohranitvenih zakonov in reoloških modelov. Shema je zapisana za hitrostno-vrtinčno formulacijo vodilnih enačb. Kot testni primeri so predstavljeni tokovi nenewtonovske Maxwellove tekočine v kanalih različnih geometrijskih oblik.
Publisher:
Association of Mechanical Engineers and Technicians of Slovenia et al.
Year of publishing:
2002
Number of pages:
str. 645-662
Numbering:
Letn. 48, št. 12
PID:
20.500.12556/DKUM-53117
UDC:
519.61/.64:532.5
ISSN on article:
0039-2480
COBISS.SI-ID:
5755419
NUK URN:
URN:SI:UM:DK:URIWTDJP
Publication date in DKUM:
10.07.2015
Views:
1294
Downloads:
67
Metadata:
Categories:
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Record is a part of a journal
Title:
Strojniški vestnik
Shortened title:
Stroj. vestn.
Publisher:
Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.]
ISSN:
0039-2480
COBISS.SI-ID:
762116
Secondary language
Language:
English
Title:
The boundary-element method for the dynamics of a viscoelastic Maxwell fluid
Abstract:
In this paper we show a numerical scheme based on the boundary-element method (BEM) for the numerical modeling of planar, viskoelastic fluid flows. In particular, the singular-boundary-integral approach, which has been established for the viscous, incompressible flow problem, is modified and extended to include the viscoelastic fluid state. Special attention is given to a proper integration of the conservation and constitutive equations. A velocity-vorticity formulation of the governing equations is adopted. As test cases, non-Newtonian-Maxwell fluid flows in the channels of various geometries are studied.
Keywords:
boundary element methods
,
fluid dynamics
,
viscoelastic fluids
,
Maxwell models
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