نتایج جستجو برای: discrete heat source

تعداد نتایج: 762753  

Journal: :international journal of iron & steel society of iran 2006
a. saboonchi n. mansouri

transfer table is an essential stage between roughing and finishing rolling stands in a hot-strip rolling mill. high temperature and long time that strip is exposed to air at this stage cause a considerable heat loss that accounts for uneven temperature distribution, non-uniform surfaces, reduced product quality and increased production costs. using thermal shields on the transfer table is cons...

Journal: :مهندسی متالورژی و مواد 0
احمد رحیمی شمس الدین میردامادی سیدحسین رضوی سید مهدی عباسی

the purpose of this study was to investigate the effect of heat treatment including solution treatment and aging on the microstructure of cast nickel-based in100 superalloy including size, volume fraction and morphology of primary γ' and different kinds of carbides. for this purpose, different solution heat treatment cycles and a constant aging cycle were implemented on cast ingot samples and t...

Journal: :journal of modern processes in manufacturing and production 0
mahmoud moradi department of mechanical engineering, faculty of engineering, malayer university, malayer, iran majid ghoreishi faculty of mechanical engineering, k.n. toosi university of technology, tehran, iran azam rahmani faculty of mechanical engineering, k.n. toosi university of technology, tehran, iran

in this paper, a three-dimensional finite element model has been developed to simulate the laser-tig hybrid welding (hlaw) of stainless steel 1.4418 with thickness of 4 mm. transient temperature profile and dimensions of the fusion zone and heat affected zone (haz) during welding process are calculatedusing finite element method (fem) and were solved in the abaqus/standard software.the heat sou...

2005
Jing Li J.C.M. Li

The heat transfer problem of a moving heat source along the surface of a half space was studied analytically and numerically. For the 2D problem, the heat source was a strip moving source and for the 3D problem, the heat source was a square moving source. Analytical solutions are available only for adiabatic conditions as given by Carslaw and Jaeger [H.S. Carslaw, J.C. Jaeger, Conduction of Hea...

2011
M. Sankar Youngyong Park Younghae Do

0017-9310/$ see front matter 2010 Elsevier Ltd. A doi:10.1016/j.ijheatmasstransfer.2010.11.043 ⇑ Corresponding author. Tel.: +82 53 950 7951; fax E-mail addresses: [email protected] (M. Sa (Y. Park), [email protected] (J.M. Lopez), yhdo@knu In this paper natural convection flows in a vertical annulus filled with a fluid-saturated porous medium has been investigated when the inner wall is ...

2010
M. Maerefat

One of the primary ways to enhance heat transfer rate is to use extended surfaces or fins. The heat transfer mechanism of fin is to conduct heat from the heat source to fin surface by its thermal conduction, and then dissipates it to surrounding medium by convection. Most common application areas of fins are in combustion engines, heat exchangers and cooling of electronic equipments. Early stud...

2009
Ming-Hui Lee

The innovative intelligent fuzzy weighted input estimation method (FWIEM) can be applied to the inverse heat transfer conduction problem (IHCP) to estimate the unknown time-varying heat flux of the multilayer materials as presented in this paper. The feasibility of this method can be verified by adopting the temperature measurement experiment. The experiment modular may be designed by using the...

2009
Ming-Hui Lee

The innovative intelligent fuzzy weighted input estimation method (FWIEM) can be applied to the inverse heat transfer conduction problem (IHCP) to estimate the unknown time-varying heat flux of the multilayer materials as presented in this paper. The feasibility of this method can be verified by adopting the temperature measurement experiment. The experiment modular may be designed by using the...

Journal: :Journal of Mechanical and Energy Engineering 2018

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