All about Fluid mechanics Video PPT lecture notes assignments question papers MCQ(Multiple choice questions)
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Course Objectives:
-Students who take this class can expect to Develop an appreciation for the properties of Newtonian fluids.
-Study analytical solutions to variety of simplified problems.
-Understand the dynamics of fluid flows and the governing non-dimensional parameters.
-Apply concepts of mass, momentum and energy conservation to flows.
-Grasp the basic ideas of turbulence.
Course Outcomes: At the end of the course, the student will be able to:
UNIT - I
Introduction: Dimensions and units – Physical properties of fluids specific gravity, viscosity, surface tension, vapor pressure and their influences on fluid motion pressure at a point, Pascal’s law, Hydrostatic law - atmospheric, gauge and vacuum pressure- measurement of pressure. Pressure gauges, Manometers: differential and Micro Manometers. Hydrostatic forces on submerged plane, Horizontal, Vertical, inclined and curved surfaces – Center of pressure. Derivations and problems.
UNTI – II
Buoyancy and floatation: stability of bodies, meta centre, liquids in relative equilibrium.
Fluid Kinematics: Description of fluid flow, Stream line, path line and streak lines and stream tube. Classification of flows : Steady, unsteady, uniform, non uniform, laminar, turbulent, rotational and irrotational flows – Equation of continuity for one, two , three dimensional flows – stream and velocity potential functions, circulation and vorticity, flownet analysis.
UNIT – III
Fluid Dynamics and Measurement of Flow: Surface and body forces – Euler’s and Bernoulli’s equations for flow along a stream line for 3-D flow, (Navier – stokes equations (Explanationary) Momentum equation and its application – forces on pipe bend. Pitot tube, Venturi meter, and orifice meter – classification of orifices, flow over rectangular, triangular and trapezoidal and Stepped notches - –Broad crested weirs.
UNIT - IV
Closed Conduit Flow: Reynold’s experiment – Characteristics of Laminar & Turbulent flows. Laws of Fluid friction – Darcy’s equation, ,variation of friction factor with Reynold’s number – Moody’s Chart, Minor losses – pipes in series – pipes in parallel – Total energy line and hydraulic gradient line. Pipe network problems Flow between parallel plates, Flow through long tubes, flow through inclined tubes, water hammer.
UNIT – V
Boundary Layer Theory: Approximate Solutions of Navier Stokes Equations – Boundary layer – concepts, Prandtl contribution, Characteristics of boundary layer along a thin flat plate, Vonkarmen momentum integral equation, laminar and turbulent Boundary layers (no derivations) BL in transition, separation of BL, control of BL, flow around submerged objects-Drag and Lift- Magnus effect.
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