Fluid mechanics is an independent branch of mechanics that studies the mechanicsof fluids (liquids,gases,and plasma) and the forces on them.Fluid mechanics includes two branches. The first one deals with the fluids at rest,which embraces the study of the ...[继续阅读]

    1. Major phases for fluid mechanics developmentFluid mechanics originates from a book On Floating Bodies written by Archimedes,a Greek scholar who lived in Sicily. He summarized mechanical properties of stationaryliquid for the first time.In 1687,Newton d...[继续阅读]

    1. Theoretical methodologyTheoretical methodology is: reasonable theoretical model is proposed throughscientific abstraction of physical properties and flow characteristic of liquid,and closedequations of controlling liquid motion are built according to u...[继续阅读]

    1. The nature and purpose of the course(1) NatureThis course is a compulsory professional basic course for the majors of civilengineering and water conservancy. The objects of study are water,air andcompressible fluid. Research contents include fluid equi...[继续阅读]

    Matter generally exists in three states: gas,liquid and solid. Liquid and gas arecollectively referred to as fluid. The main difference between fluid and solid is that theyhave different resistance to external forces in terms of mechanical analysis. Solid...[继续阅读]

    From the point of view of molecular physics,fluid and other matters comprise of alarge number of molecules in random motion,and space exists between molecules. Dueto the space between molecules,technically speaking,fluid is not continuous andphysical quan...[继续阅读]

    Inertia is the resistance of any physical object to any change in its state of motion(this includes changes to its speed,direction or state of rest). It is the tendency ofobjects to keep moving in a straight line at constant velocity. Mass is the quantita...[继续阅读]

    1. Compressibility of liquidIn fluid mechanics,compressibility is a measure of the relative volume change of aliquid as a response to a pressure (or mean stress) change. The compressibility of liquidcan be quantified by coefficient of compressibility,whic...[继续阅读]

    1.Viscosity and internal friction of fluidFluid is flowable. Even a very small shearing force will deform a fluid body at restwhile fluid can resist deformation by shear stress in motion state. The viscosity of afluid is a measure of its resistance to gra...[继续阅读]

    Surface tension is the elastic tendency of liquids that makes them acquire the leastsurface area possible. At liquid-air interfaces,surface tension results from the greaterattraction of liquid molecules to each other (due to cohesion) than to the molecule...[继续阅读]