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Naslov:Heat conduction in closed-cell cellular metals
Avtorji:Vesenjak, Matej (Avtor)
Žunič, Zoran (Avtor)
Öchsner, Andreas (Avtor)
Hriberšek, Matjaž (Avtor)
Ren, Zoran (Avtor)
Datoteke:URL http://dx.doi.org/10.1002/mawe.200500911
 
Jezik:Angleški jezik
Vrsta gradiva:Neznano ()
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Opis:The purpose of this research was to describe the thermal transport properties in closed-cell cellular metals. Influence of cell size variations with different pore gases has been investigated with transient computational simulations. Heat conduction through the base material and gas in pores (cavities) was considered, while the convection and radiation were neglected in the initial stage of this research. First, parametric analysis for definingthe proper mesh density and time step were carried out. Then, two-dimensional computational models of the cellular structure, consisting of the base material and the pore gas, have been solved using ANSYS CFX software within the framework of finite volume elements. The results have confirmed theexpectations that the majority of heat is being transferred through the metallic base material with almost negligible heat conduction through the gas in pores. The heat conduction in closed-cell cellular metals is therefore extremely depended on the relative density but almost insensitive regarding tothe gas inside the pore, unless the relative density is very low.
Ključne besede:heat transfer, cellular metal materials, porous materials, closed cells, gas fillers, computational simulations
Leto izida:2005
UDK:536.2:519.61/.64
COBISS_ID:9972502 Novo okno
ISSN pri članku:0933-5137
NUK URN:URN:SI:UM:DK:LJIO6Y5M
Število ogledov:1639
Število prenosov:83
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Gradivo je del revije

Naslov:Materialwissenschaft und Werkstofftechnik
Skrajšan naslov:Mater.wiss. Werkst.tech.
Založnik:VCH-Verl.-Ges.
ISSN:0933-5137
COBISS.SI-ID:1461509 Novo okno

Sekundarni jezik

Jezik:Angleški jezik
Ključne besede:prenos toplote, celični kovinski materiali, porozni materiali, zaprte celice, plinska polnila, računalniške simulacije


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