نتایج جستجو برای: heat source model

تعداد نتایج: 2605161  

Journal: :iranian journal of science and technology (sciences) 2006
j. biazar

a 2-d heat conduction model has been solved by using the adomian decomposition method topredict the transient temperature and heat flux distribution in a thick solid that is irradiated by a laser source.the laser source may operate in a continuous wave (cw) mode or repeated pulse (rp) mode and may havearbitrary, spatial and temporal profiles.a generalized solution containing five-terms approxim...

Journal: :Journal of Mechanical and Energy Engineering 2018

2014
Aniruddha Ghosh Grzegorz Krolczyk Ivan Samardzic Ranjan Kumar Mitra

Original scientific paper In present work, thermal transport considering heat radiation by oval heat source shape and heat transfer of molten moving electrode was presented. In present paper, an analytical solution was presented by aggregating temperature increments caused by applying liquid metal and heat radiation of moving electrode. The assumptions for the study were heat source of temperat...

2012
Seama Koohi - Fayegh Marc A. Rosen

The temperature response in the soil surrounding multiple boreholes is evaluated analytically and numerically. The assumption of constant heat flux along the borehole wall is examined by coupling the problem to the heat transfer problem inside the borehole and presenting a model with variable heat flux along the borehole length. In the analytical approach, a line source of heat with a finite le...

2017
Claire Brenner Christina Elisabeth Thiem Hans-Dieter Wizemann Matthias Bernhardt Karsten Schulz

In this study, high-resolution thermal imagery acquired with a small unmanned aerial vehicle (UAV) is used to map evapotranspiration (ET) at a grassland site in Luxembourg. The land surface temperature (LST) information from the thermal imagery is the key input to a one-source and two-source energy balance model. While the one-source model treats the surface as a single uniform layer, the two-s...

Journal: :Vietnam Journal of Mechanics 1994

2016
Sharath Kumar Harsha Kumar N. Gnanasekaran

The paper reports the estimation of volumetric heat generation (qv) from a Teflon cylinder. An aluminum heater, which acts as a heat source, is placed at the center of the Teflon cylinder. The problem under consideration is modeled as a three dimensional steady state conjugate heat transfer from the Teflon cylinder. The model is created and simulations are performed using ANSYS FLUENT to obtain...

2017
Anis Ammous Sami Ghedira Bruno Allard Hervé Morel Denise Renault

The literature proposes some thermal models needed for the electrothermal simulation of power electronic systems. This paper gives a useful analysis about the choice of the thermal model circuit networks, equivalent to a discretization of the heat equation by the finite difference method (FDM) and the finiteelement method (FEM), and an analytic model developed by applying an internal approximat...

Journal: :sahand communications in mathematical analysis 2014
mohammad mehdizadeh khalsaraei fayyaz khodadosti

in this paper, the reorganization of the denominator of the discrete derivative and nonlocal approximation of nonlinear terms are used in the design of nonstandard finite difference schemes (nsfds). numerical examples confirming then efficiency of schemes, for some differential equations are provided. in order toillustrate the accuracy of the new nsfds, the numerical results are compared with s...

ژورنال: فیزیک زمین و فضا 2015

In this paper an indirect method is presented to detect potential geothermal sites in Kerman province, southeast Iran. Geothermal heat flux is one of the main parameters to be investigated in geothermal exploration programs. However, few direct heat flux measurements are available for Iran. Given the proved relation between Curie depths and heat flux, magnetic data can be used to calculate the ...

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