水库水温灰色扩散模型及其在刘家峡水库中的应用

THE GREY DIFFUSION MODEL FOR RESERVOIR TEMPERATURE AND MODELLING OF THERMAL STRUCTURE AT LIUJIAXIA RESERVOIR

水库水温是水库水质的一个重要的参数。本文运用灰色系统建立水库水温一维(垂向)灰色扩散模型,并应用于刘家峡水库,其结果令人满意。与经典的确定水温扩散模型比较,该模型的预测结果为垂向的一条带(一个灰色区域),而不是一条线。该模型更深刻、更确切、更实际地反映了水库热结构系统。

Temperature is a very important parameter in determining the water quality of reservoirs. This paper has developed a one-dimensional grey diffusion model for deternuning reservoir temperature by the use of grey system theory approach. The model was used for the modelling of the thermal structure at Liujiaxia reservoir. Quantitative and qualitative agreements between computed and measured temperature profiles were satifactory.