(英汉双语)流体力学绪 论.ppt

1 * Fluid Mechanics 1 1、Study Objects of Fluid Mechanics 2、Tasks of Fluid Mechanics 3、Study Approaches of Fluid Mechanics 4、History of Fluid Mechanics 5、Modern Teaching Research of Fluid Mechanics 6、 Modern teaching research of fluid mechanics PREFACE 一、流体力学的研究对象 二、流体力学的任务 三、流体力学的研究方法 四、流体力学的发展史 五、流体力学现代教学研究 六、流体力学现代教学研究 绪 论 1、 Study Objects of Fluid Mechanics Fluid mechanics is an important branch of modern mechanics， It’s a science that studies fluid’s balance , mechanical movement laws and the interaction between fluid and the objects around it. It mainly ascertains the distribution of speed and pressure ,energy loss and the interaction force and the moment between fluid and solid. Water and air are researched mostly in fluid mechanics. Besides these ,fluid also includes vapor as work medium in turbine, lube ,water which mixing with mud and sand, blood, melting metal and the gas with complicated components coming from burning, plasm under high temperature condition etc. 一、流体力学的研究对象 流体力学是近代力学的一大分支，它是研究流体的平衡和机械运动规律以及流体与周围物体之间相互作用的科学，主要是确定流体的速度分布，压强分布与能量损失，以及流体与固体相互间的作用力与作用力矩。 流体力学中研究得最多的流体是水和空气。除水和空气以外流体还包括作为汽轮机工作介质的水蒸汽、润滑油、石油、含泥沙的水体、血液、溶化状态下的金属和燃烧后产生的成分复杂的气体，高温条件下的等离子体等等。 Incise the oil well rock with high pressure water stream technique example： 应用高压水射流技术对油井岩石割缝 例： Fluid mechanics is not only an age-old subject, but also a new fashion subject which can be researched on quite widely fields. There are many questions about fluid mechanics in these departments, such as in aviation, spaceflight, navigation, astronomical weather, physical geography, water conservancy and hydropower, heat energy refrigeration, building construction and environmental protection, petroleum and chemical engineer, transporting air and liquid, combustion and explosion, metallurgy and mining, biology and sea, war industry and nuclear energy, machine building, mechanical engineering etc. 2、 Tasks of Fluid Mechanics 流体