Variation of the subsidence parameters, effective thermal conductivity, and mantle dynamics

investigation of effective parameters on the rigidity of light composite diaphragms (psscb) by fem

در این رساله با معرفی سقف های psscb متشکل از ترکیب ورق های فولادی ذوزنقه ای و تخته های سیمانی الیافی به عنوان سقف های پیش ساخته (سازگار با سیستم سازه ای قاب های فولادی سبک) به بررسی پارامترهای موثر بر صلبیت سقف، پرداخته می شود. در تحقیق حاضر ابتدا به مدل سازی دو نمونه سقف آزمایش شده، به روش اجزاء محدود با استفاده از نرم افزار تحلیلی abaqus ver 6.10 پرداخته شده است. نمونه های ساخته شده تحت اعما...

Variation of Parameters Method for Thermal Analysis of Straight Convective- Radiative Fins with Temperature Dependent Thermal Conductivity

In this study, thermal performance across straight convecting- radiating fin with temperature dependent thermal conductivity is considered. The variation of parameters (VPM) is adopted to analyze the nonlinear higher order differential equations arising due to thermal conductivity and heat transfer coefficient on temperature distribution. Pertinent parameters such as thermo geometric and radiat...

A molecular dynamics study of effective thermal conductivity in nanocomposites

0017-9310/$ see front matter 2013 Elsevier Ltd. A http://dx.doi.org/10.1016/j.ijheatmasstransfer.2013.02 ⇑ Corresponding author. Tel.: +1 215 895 1373; fax E-mail address: [email protected] (Y. Sun). In this study, non-equilibrium molecular dynamics (NEMD) simulations are performed to determine the effective thermal conductivity of nanocomposites embedded with a variety of nanoparticles. The ...

Radiative Thermal Diffusivity and Conductivity of the Upper Mantle

Olivine comprises >60% of the upper mantle, making it the dominant control on heat transport through the lithosphere. Accurate estimates of the thermal diffusivity and thermal conductivity are important to modeling geotherms, estimating lithospheric thickness, determining the depth range of melt generation, etc. Diffusivity and conductivity result from lattice vibration and radiative transport ...

The Threshold Dependencies of Thermal Conductivity and Implications on Mantle Dynamics