Heat Transfer in Solids+Solid Mechanics boundary conditionsLogin
Heat transfer in solids is typically conducted through either electrons or atomic vibrations known as phonons. In a vacuum, heat has long been thought to be transferred by radiation but not by phonons because of the lack of a medium1. Recent theory, however, has predicted that quantum fluctuati...
Juárez,E. Marín.Study of the heat transfer in solids using infrared photothermal radiometry and simulation by COMSOL Multiphysics[J]. Applied Radiation and Isotopes .2013Study of the heat transfer in solids using infrared photothermal radiometry and simulation by COMSOL Multiphysics[J] . V. Suarez...
Heat transfer in solids proceeds through heat conductivity. The quantitative relation between metal heat conductivity λ, temperature gradient ∂T/∂x and heat flow density qx in a solid is described by the Fourier heat conductivity law. For a rod heated up to a variable temperature, the rela...
time steps in transient heat transfer in solids Hello, Is there any criteria for the time steps doing transient calculation with heat transfer in solids? I found one for the convective mass transport saying 2*dt*nu/rho < L^2 L ... mean mesh size dt ... time step rho ... density nu...
Heat Transfer in a Solid In most cases, heat transfer in solids, if only due to conduction, is described by Fourier’s law defining the conductive heat flux,q, proportional to the temperature gradient: . For a time-dependent problem, the temperature field in an immobile solid verifies the ...
The heat transfer in solids, electric currents, and solid mechanics modules in COMSOL Multiphysics (COMSOL Inc.) were used to estimate the TE and mechanical performances of our compliant TEG. To calculate the TE effect of the compliant TEG, the thermal conductivity of the s-HC was extracted fr...
Particulate hydrocarbonaceous feed mixed with heat-transfer solids in chute with spouting gas and weir prior to introduction into packed bed for retorting.P. Henrik WallmanUSUS4432861 * 1983年3月17日 1984年2月21日 Chevron Research Company Feed mixing chute and packed bed for pyrolyzing hydro...
Typically, the multiphase flow assumption at the edge of steam chamber is introduced in our model. And the effect of both the conduction and convection heat transfer in steam chamber are considered. Especially, in this model, the convective heat transfer process caused by pressure difference and ...
However, as it has been recently noticed [2–4], in this case the principle cannot be applied (we return on this point in the next sections). The question arising is then to characterize the evolution of the rate of entropy production due to heat transfer in solids. The aim of this ...