风挡防(除)雾表面瞬态热特性计算

CALCULATION OF THE INSTANTANEOUS HEAT PERFORMANCE ON THE WINDSHIELD ANTI FOG AND DEFOG SURFACE

风挡表面瞬态热特性计算是热空气射流防（除）雾系统设计的重要内容．在分析风挡防（除）雾换热机理的基础上，建立了风挡表面瞬态热特性的计算模型，用差分法对其求解．通过计算机模拟，得出计算结果，与试验结果比较，计算误差小于５％．研究的内容，具有工程实用价值．

Calculation of the instantaneous heat performance on windshield surface is the important content of design of hot gas anti fogging and defogging system. On the basis of analyzing the heat exchange mechanism of windshield anti fog and defogging, calculating model of instantaneous heat performance on windshield surface has been built and using computer it is solved by difference method. The difference between calculated results and experimental results is limited with 5%. The content has applicable value in engineering.