Thermomechanical Coupling Analysis and Optimization of Metallic Thermal Protection System

Table 3

Effective thermal conductivity obtained by the finite differential method and finite element method.

Input heat (K)		Constant thermal property		Temperature-dependent thermal property
		Temperature (K)	Effective thermal conductivity (W/(m·K))	Temperature (K)	Effective thermal conductivity (W/(m·K))
0.5	FDM	857.1 ⟶ 766.2	1.84	892.6 ⟶ 767.1	1.333
	FEM	853.7 ⟶ 761.8	1.82	907.1 ⟶ 779.3	1.308
1.0	FDM	1091.2 ⟶ 937.5	2.18	1115.9 ⟶ 938.2	1.88
	FEM	1086.3 ⟶ 929.7	2.13	1119.6 ⟶ 934.3	1.81
2.0	FDM	1376.9 ⟶ 1137.7	2.79	1381.6 ⟶ 1137.8	2.74
	FEM	1371.7 ⟶ 1123.1	2.70	1381.4 ⟶ 1122.7	2.58