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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。
Ancient building oil painting painted in the artificial light source close range, the surface of the degree of thermal damage will directly affect the ancient architectural landscape lighting design and construction of night light environment. In this paper, the finite volume method was used to establish the heat transfer model of three-dimensional cube diffusion of oil-painted painted wood specimens. The temperature of the characteristic points of oil-paint painted wood specimens was measured based on the experiment. Surface Net Heat Flux and Its Variation under Illumination Irradiation. Through the comparison with the net heat flux characteristics of the illuminated surface under the natural light solar radiation and the verification of the experimental results of the actual irradiation, it is found that the close use of the artificial light source in the ancient Chinese architectural landscape lighting design does not have substantive The thermal damage for the ancient architectural landscape lighting design and application provides a theoretical basis.