If the radiation heat transfer component is negligibly small, q″rad≪(q″conv,q″S), and the conduction heat transfer coefficient h is constant, then (2.44) becomes (2.48)dθ′dt+Aθ′=0,θ′=θ−BA,A=hAS(conv)ρVc,B=q″SAS(h)+E˙gρVcadmitting the analytic solution (2.49...
The conduction phenomenon in an insulated sphere is re-worked through a dimensionless approach, where the heat transfer coefficient dependence on the external radius and on the surface temperature, as in the case of forced and free convection, is taken into account. Assuming a power law variation...
coefficient of heat conduction 热传导系数 equation of heat conduction 热传导方程 heat conduction problem 热传导问题 unsteady heat conduction 不稳定导热 相似单词 conduction n. 传导 transfer v.[T] 1.搬;转换;调动 2.使换车;使转校 3.改变,转变 4.转印,描摹 5.转让,让渡 v.[I] 1.搬迁,转...
coefficient of heat conduction 热传导系数 equation of heat conduction 热传导方程 heat conduction problem 热传导问题 unsteady heat conduction 不稳定导热 相似单词 conduction n. 传导 transfer v.[T] 1.搬;转换;调动 2.使换车;使转校 3.改变,转变 4.转印,描摹 5.转让,让渡 v.[I] 1.搬迁,转...
The range of heat transfer coefficients where isothermal wall conditions are approached is illustrated. Correlations for the operating average and cycle average total heat transfer are presented as functions of the thermal diffusivity, intermittence factor, and heat transfer coefficient.doi:10.1080/...
Wu, Estimation of heat transfer coefficient in two- dimensional inverse heat conduction problems, Numerical Heat Transfer. Part B,50, 375-394, 2006. :H.T.Chen,X.Y.Wu.Estimation of heat transfer coefficient in two-dimensional inverse heat con-duction problems. Numerical Heat Transfer . 2006...
103 -- 34:06 App Fluid Mechanics 101_Convection (Heat Transfer Coefficient) Boundary Conditions 144 -- 45:48 App Heat Transfer 03 Energy balance problems thermal conductivity thermal diffusivit浏览方式(推荐使用) 哔哩哔哩 你感兴趣的视频都在B站 打开信息...
valid only whenT2−T1≪T2+T12, and whereNis the number of conducting channels,Tis the transmission coefficient integrated over all the wave-vector,Gq=π2kB2T/3his the universal upper limit of phonon heat transport known as the quantum of thermal conductance for one channel;T1andT2being the...
This situation can be illustrated by considering a small, spherical object at an initial temperature T0 which is suddenly submerged in a fluid at temperature T∞ which imposes a heat transfer coefficient at the surface of the sphere h with the units W/m2K. If the sphere has density ρ, ...
性质:又称导热系数,热传导系数(heat transfer coefficient)。反应物质的热传导能力。按傅里叶定律,其定义为单位温度梯度(在1m长度内温度降低1K)在单位时间内经单位导热面所传递的热量。单位为W/(m·K)。是物质的物性常数。 说明:补充资料仅用于学习参考,请勿用于其它任何用途。