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加拿大国立水文研究院,成功地运用圆形旋转试验槽进行河冰形成与演变的模型试验,并将利用该试槽进行水流污染物生化降解的研究和模拟,现报导如下: 建造漂流筏随同水体流动以观测河流中某一水体的热变化(河冰形成及演变)和污染物的降解过程等,被称为“拉格朗日”模式的研究方法,与之相反,若沿河建立多处测站以观测该水体沿河下流时的各项变化现象则被称为“尤拉”模式。加拿大国安大略省水务局便曾于1967、1968、1969、1970等年份多次用“拉格朗日”模式进行尼阿加拉河上游河道的河冰观测(即世界有名的尼阿加拉大瀑布的河流上游河段)。
National Hydrological Research Institute of Canada, the successful use of circular rotating test tank model of ice formation and evolution of the experiment, and the use of the test tank for biochemical degradation of water pollutants research and simulation are reported as follows: Construction of rafts along with the water body Flowing to observe the thermal changes (the formation and evolution of river ice) and the degradation of pollutants in a certain water body in a river is called the research method of “Lagrange” mode. On the contrary, if there are many places along the river Stations to observe the changes in the body of water along the river when the phenomenon is called “Euler” mode. Canada’s Ontario Water Authority has been in the years 1967, 1968, 1969, 1970 and so on many times with “Lagrangian” mode for river ice observations of the upper Niagara River (ie the world famous Niagara Waterfall upstream of the river).