JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objectives:

• Illustrate about the basic properties of a fluid, hydrostatic forces on submerged bodies and different manometers.
• Derive the basic principles of a fluid-continuity, momentum, Euler and Bernoulli‘s equations.
• Explain the concept of boundary layer theory and importance of Prandtl‘s boundary layer theory.
• Understand the flow through pipes and their losses for different geometries.

Course Outcomes:

• Basic fluid mechanics and description of fluid motion
• Various equations to solve fluid dynamics problems
• Concept of boundary layer

UNIT - I

Fluid Properties and Fluid Statics: Density, specific weight, specific gravity, surface tension and capillarity, Newton‘s law of viscosity, incompressible and compressible fluid, numerical problems; Hydrostatic forces on submerged bodies - Pressure at a point, Pascal's law, pressure variation with temperature and height, center of pressure plane, vertical and inclined surfaces; Manometers - simple and differential Manometers, inverted manometers, micro manometers, pressure gauges and numerical problems. Buoyancy - Archimedes principle, metacenter, Meta centric height calculations; Stability

UNIT - II

Fluid Kinematics and Basic Equations of Fluid Flow Analysis: Stream line, path line, streak line, stream surface, stream tube, classification of flows, steady, unsteady, uniform, non-uniform, laminar, turbulent flows, one dimensional approximation, examples of real 1-D flows, two dimensional approximation, 2-D flow in wind tunnel; Continuity equations for 1-D and 2-D flows both compressible and incompressible, stream function for two dimensional incompressible flows; Vortices, irrotational flow, velocity potential function

UNIT - III

Fluid Dynamics: Basic laws for a system in integral form: Reynolds transport theorem, Conservation of mass, Newton‘s 2nd law; Application of the basic laws for a control volume; Kinematics; Motion of a fluid particle; Fluid deformation; Differential analysis of fluid motion: Continuity equation, Differential momentum equation, Surface and body forces, substantive derivative, local derivative and convective derivative, momentum equation, Euler's and Bernoulli's equation, phenomenological basis of Naviers- stokes equation, introduction to vortex flows, flow measurements : pressure, velocity and mass flow rate, viscosity, pivot-static tube, venture meter and orifice meter, viscometers. Statement of Buckingham‘s π- theorem, similarity parameters - Reynolds number, Froude number, concepts of geometric, kinematic and dynamic similarity, Reynolds number as a very approximate measure of ratio of inertia force and viscous force.

UNIT - IV

Boundary Layer Theory and Pipe Flow: Boundary layer - introductory concepts of boundary layer, large Reynolds number flows and Prandtl‘s boundary layer hypothesis Pressure drag and skin friction drag; Pipe flow - Reynolds experiment, Darcy‘s equation, major and minor losses in pipes and numerical problems. Flow between parallel plates, flow through long tubes –fully developed flow, Turbulent flow, variation of friction factor with Reynolds‘s Number, Moody's chart.

R18 B.TECH. AERONAUTICAL ENGG.

UNIT - V

TURBO MACHINERY: Introduction and classification of fluid machines: Turbo machinery analysis; The angular momentum principle; Euler turbo machine equation; Velocity triangles; Application to fluid systems - Working principle overview of turbines, fans, pumps and compressors.

TEXT BOOKS:

• 1. Shames I H, ―Mechanics of Fluidsǁ, Kogakusha, Tokyo, 7th Edition, 2007.
• 2. R. K Bansal, ―Fluid mechanics and hydraulic machinesǁ, Laxmi publications ltd, 9th Edition, 2011.
• 3. Robert W Fox, Alan T McDonald, ―Introduction to fluid Mechanicsǁ, John Wiley and Sons, 6th Edition, 1995.
• 4. Streeter V. L, Wylie, E.B., ―Fluid Mechanicsǁ, McGraw-Hill, 9th Edition, 1983.

REFERENCE BOOKS:

• 1. Yuan S W, ―Foundations of fluid Mechanicsǁ, Prentice-Hall, 2nd Edition, 1987.
• 2. Milne Thompson L M, ―Theoretical Hydrodynamicsǁ, MacMillan, 5th Edition, 1968.
• 3. Ratha krishnan. E, ―Fundamentals of Fluid Mechanicsǁ, Prentice-Hall, 5th Edition, 2007.
• 4. Som S. K, Biswas. G ―Introduction to fluid mechanics and fluid machinesǁ, Tata McGraw- Hill, 2nd Edition, 2004 R18 B.TECH. AERONAUTICAL ENGG.