摘要
古建筑油饰彩画在人工光源近距离照射后,表面的热损伤程度将直接影响到古建筑景观照明设计的应用和夜景光环境的营造。本文采用有限容积法建立了油饰彩画木试件三维立方体扩散的传热模型,并基于实验测得了油饰彩画木试件特征点温度,数值模拟了油饰彩画木试件表面在4种人工照明光源照射作用下的表面净热通量及其变化。通过与在天然光太阳辐射下被照表面的净热通量特征的对比及实际照射实验结果的验证,发现中国古建筑景观照明设计中人工光源的近距离使用不会对油饰彩画产生实质性的热损伤影响,为古建筑景观照明设计应用提供了理论依据。
After being exposed to the close-range artificial lighting,the thermal damage on the surface of oil decorative color painting in the ancient architecture will directly affect the application of landscape lighting design and nightscape light environment.In this paper,the finite volume method was used to establish 3D cube diffusion heat transfer model of oil decorative color painting wood sample,and the surface net heat flux and its variation trend were simulated under four kinds of artificial lighting sources basing on the tested temperature of the characteristic point of the wood sample.Through the comparison with the characteristics of surface net heat flux under natural light radiation and the verification of the actual radiation test results,it was found that the close-range use of artificial light source in the landscape lighting design of Chinese ancient architecture would not have substantial heat damage influence,which provided theoretical basis for the application of landscape lighting design of ancient architecture.
出处
《建筑科学》
北大核心
2011年第4期95-99,共5页
Building Science
基金
国家自然科学基金项目(50876040)
关键词
有限容积法
热传导
热通量
人工照明光源
油饰彩画
finite volume method
heat transmission
heat flux
artificial light source
oil decorative color painting
