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AEE244 FLUID MECHANICS

Course Objectives

By taking this course, the students will:

• be able to analyze fluid flows encountered in engineering practice,

• be able to make interpretations for the possible physical outcomes related with the deformations of the fluid elements during their motion,

• decide whether the Lagrangian or the Eulerian approach should be used in the analysis of a particular fluid problem

• be able to apply and make use of the basic conservation equations (mass, momentum and energy) for a fluid flow problem,

• decide whether an integral approach or differential approach is more appropriate for a particular fluid problem,

• be able to make simplifications for engineering fluid flow problems and make estimations with reasonably good accuracy.

Course Content

Introductory remarks, definitions, physical properties of fluids, definitions of density, pressure and viscosity. Fluid statics, pressure variation in a fluid, forces acting on flat and curved surfaces, buoyancy. Fluid kinematics, motion of a fluid element, rotation, deformation. Eulerian and Lagrangian flow descriptions, pathlines, streaklines, timelines and streamlines. Eulerian and Lagrangian flow descriptions, conservation laws, system-control volume approaches, Reynolds Transport theorem. Governing integral equations of fluid flow, conservation of mass, conservation of linear momentum and angular momentum, conservation of energy, Bernoulli’s equation and its applications. Differential analysis of fluid flow, Navier-Stokes equations, Couette flow, Poiseuille flow. Turbulent flows in pipes.

Course Learning Outcomes

In this course, the students will:

• be acquainted with the fundamentals of fluid mechanics,

• analyze the pressure field across a fluid region under static conditions or in solid body motion,

• learn the Lagrangian and Eulerian approaches in the analysis of fluid motion,

• comprehend key properties that may be obtained from fluid kinematic analysis, and obtain the equations for various flow lines (streamlines, streaklines, pathlines) corresponding to a given velocity field,

• learn the Reynolds transport theorem, and apply it to conservation of mass, momentum and energy,

• understand the deformations that a fluid particle undergoes during its motion,

• learn about the integral and differential approaches for the application of the conservation equations in a flow field,

• appreciate the simplifications of the integral forms of the conservation equations for one-dimensional flow situations, and apply these equations to analyze engineering problems,

• learn Bernoulli equation and understand the restrictions on its use,

• derive the differential forms of the conservation equations for viscous fluid motion in the form of the Navier-Stokes equations,

• carry out the differential analysis for simple flow situations (such as steady, laminar flow through pipes, or between parallel plates) and relate the pressure loss to the velocity distributions, and determine the wall shear stresses,

• appreciate the differences between laminar and turbulent flow fields,

• calculate major/minor losses that take place in pipe flows,

• perform estimation of the aerodynamic lift and drag of a body embedded in a given flow field.

Program Outcomes Matrix