Fluid Mechanics & Hydraulic Machines - 4

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FLUID MECHANICS & HYDRAULIC FLUID MECHANICS & HYDRAULIC MACHINES Lecture 3: Fluid Dynamics Er. Deepak Kumar Mallick, School of Civil Engineering. Types of Flow Types of Flow d h d l l ã One-, two- and three dimensional Flow. Three dimensional flow stipulates that the flow properties vary in all the Three dimensional flow stipulates that the flow properties vary in all the three directions. When the velocity change in any of the direction is negligible then it can be assumed as two di
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   MACHINES Lecture 3: Fluid Dynamics Er. Deepak Kumar Mallick,School of Civil Engineering.    ã One-, two- and three dimensional Flow. threedirections.Whenthevelocitychangeinanyofthedirectionisnegligiblethenitcanbeassumedastwodimensionalflow.Whenthevelocitychangeintwodirectionsarenegligiblethenitcanbeassumedasonedimensionalflow.  .. ã Steady & unsteady Flow. For steady flow the values of all fluid properties (velocity, temperature,densit etc. at an ixed oint are indeendent o time but are unction o flow passage. P  t  , .t, is the time.  … ã Uniform and non-uniform flow. Iftheflowparameterssuchaspressure,velocity,density,viscosityand temeratureremainconstantthrouhoutthelowieldataniventime. P0S  P, represents any one of the flow parameters.
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