拖槽中模拟烟羽浓度的定量研究

目的 探索一种应用于拖槽中模拟烟羽浓度定量分析的便利方法。方法 用图像处理的手段研究烟羽彩色照片的三原色灰度值与烟羽浓度值的关系。结果 模拟烟羽的浓度与其图像红、绿灰度差在一定范围内有双对数线性关系，其线性相关系数达９９．４％。使某复杂地貌模型拖槽实验的烟羽浓度得以量化。用ＤＥＣ图像工作站处理烟羽照片，得到的量化伪彩色图像与实拍照片的视觉效果一致。结论 拖槽中模拟烟羽的浓度可以通过图像处理由普通摄

Concentration Quantifying of the Smoke Plume Modeled in a Towing Water Tunnel

Aim To study a new method so as to replace the fluorescence agent by the ordinary tracer in the water tank experiment. Methods The image processing was used to analyse the grey scales of three color primaries. Results The corresponding relation between the concentration of the pume modeled with convenient color element solution and the grey scale of the image was obtained by means of DEC image station, and the linear corresponding coefficient was 99 4%. Conclusion The new method proved available based on a set of water tank experiment.