Reynoldsfamouslystudiedtheconditionsinwhichtheflowoffluidinpipestransitionedfromlaminartoturbulent.FromtheseexperimentscamethedimensionlessReynoldsnumberfordynamicsimilarity.Reynoldsalsoproposedwhatisnowknownas'Reynolds-averaging'ofturbulentflows,wherequantitiessuchasvelocityareexpressedasthesumofmeanandfluctuatingcomponen5ts.中...
地球物理流体力学课件：Lecture 6 Ekman flows 和海洋风生环流 •Objectives:tounderstandthecommoncharacteroflargescaleatmosphericdynamicsandoceanicdynamics.大尺度大气和海洋动力学的共性特征.•MajorContents:(1.)Dynamicbehaviorofgeophysicalfluidunderconditionsofgravitation,rotation,stratification层结,viscosityandheating...
After 1873 Reynolds concentrated mainly on fluid dynamics and it was in this area that his contributions were of w 4、orld leading importance.,Reynolds famously studied the conditions in which the flow of fluid in pipes transitioned from laminar to turbulent. From these experiments came the ...
PE3043-FALL/2004-Page 1 Turbulent Flow in Pipes and Annuli • Pump rate usually is too high to maintain a laminar flow • Velocity distribution is more uniform • A thin boundary layer near the pipe wall remains in laminar flow • Chaotic fluid movement PE3043-FALL/2004-Page 2 Flow...