先进材料疑固实验室 Heat trasfer Laboratory of Advanced Materials Solidification Fourier's Law,for thermal conduction d=-kVT ● g is the local heat flux density,W.m-2 k is the material's conductivity,W.m-1.K-1, V T is the temperature gradient,K.m-1. For simplification,Fourier's law can be used in its one-dimensional form. T 9z=-k dx 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITYHeat trasfer Fourier’s Law, for thermal conduction • where • is the local heat flux density, W·m−2 • k is the material's conductivity, W·m−1·K−1, • ∇ T is the temperature gradient, K·m−1. For simplification, Fourier's law can be used in its one-dimensional form