基于有限元分析的地面目标温度场理论建模研究

Study on the Theory of Ground Target Temperature Field Based on Finite Element Analysis

物体表面温度场计算是红外成像仿真的重要基础,针对建筑物目标表面温度场理论建模与计算展开研究,在分析目前有限差分计算建筑物目标表面温度场不足的基础上,综合传热学、红外物理学相关理论,详尽分析了影响地面目标表面温度的诸多因素,对建筑物目标表面温度场进行了理论建模,并引入了有限元方法对其求解,对结果进行了定性分析。

Computation of the object surface temperature was the basis of intrared imaging. Modeling and computing were researched for the theory of building target surface temperature field in this paper. Based on the limit of finite difference in building target surface temperature field and integrated the theory of ealorif- its and infrared physics, several factors which affect the ground target surface temperature were analyzed. The building target surface temperature field was modeled in theory and computed by finite element, and the result went through a qualitative analysis. This experiment proved the validity of temperature field model which was provided in this paper.