水力机械内鲤鱼草鱼的压力损伤模拟试验  

SIMULATING EXPERIMENT ON THE DAMAGE OF CARP AND GRASS CARP CAUSED BY THE PRESSURE CHANGING COURSES IN HYDRAULIC MACHINERY

作　　者：邵奇[1] 李萌[1] 吴玉林[1] 刘树红[1] 张俊岭[1] 

机构地区：[1]清华大学热能工程系,北京100084

出　　处：《工程热物理学报》2003年第6期954-957,共4页Journal of Engineering Thermophysics

基　　金：清华大学基础研究985基金(JC2000016)

摘　　要：通过试验人工模拟水力机械内压力变化过程,测量压力时间变化,观察并解剖分析不同压力变化过程对鲤鱼和草鱼造成损伤的情况。试验发现,负压状态下的压力变化过程会对鱼的生存构成直接威胁,并得到了新型环保水力机械设计中应采用的压力时变导数极限值。The different pressure changing courses in hydraulic machinery were simulated through experiments, after each course, the pressure-time data was recorded, then the carps and grass carps injured were checked and anatomized. In present studies, it is demonstrated that fishes are severely injured after pressure changing courses during subatmospheric condition, and the maximum derivative of pressure with respect to time safe for fishes is concluded, which should be adopted in the design of new environmentally friendly hydraulic machinery.

关 键 词：环保型水力机械 压力时变导数 鱼类损伤 模拟试验 

分 类 号：TK7[动力工程及工程热物理—流体机械及工程] Q959.4[生物学—动物学]