牛顿流体和非牛顿流体教学演示仪器的开发研究  

Teaching Apparatus to Demonstrate the Differences Between Newtonian Fluid and Non-Newtonian Fluid

作　　者：葛雄[1] 张根广[1] 颜婷[1] 王华伟[1] 

机构地区：[1]西北农林科技大学水利与建筑工程学院,杨凌712100

出　　处：《现代科学仪器》2011年第3期31-33,39,共4页Modern Scientific Instruments

基　　金：西北农林科技大学国家级大学生创新性实验计划资助项目

摘　　要：牛顿流体和非牛顿流体存在着较大的差异,有关牛顿流体和非牛顿流体特性差异方面的教学演示仪器还较少,有些还处于空白。为了加强学生对牛顿流体和非牛顿流体的认识,本文根据牛顿流体与非牛顿流体流动特性差异,设计制作了表现牛顿流体和非牛顿流体层流流速分布差异的演示仪器;利用自行研制的示踪液体演示了非牛顿流体和牛顿流体运动过程,直观的展示了牛顿流体与非牛顿流体层流流速分布的差异。There are many differences between the Newtonian fluid and the non-Newtonian fluid,and there is a few or even not teaching apparatus to demonstrate the behavior differences between the Newtonian fluid and the non-Newtonian fluid.To strengthen understanding of the Newtonian fluid and the non-Newtonian fluid,a teaching apparatus to demonstrate the velocity distribution differences in laminar flow between the Newtonian fluid and the non-Newtonian fluid was designed and made based on the flow characteristics differences.The movement behaviors of the Newtonian fluid and the non-Newtonian fluid were displayed by the tracer liquid developed by us.The velocity distribution differences at laminar flow between the Newtonian fluid and the non-Newtonian fluid can be found easily and directly in the demonstration apparatus.

关 键 词：演示仪器 非牛顿流体 示踪液 幂律流体 

分 类 号：O373[理学—流体力学]