Final Examination Tips

Ghosh - 550Page 111/30/2018

EMEM 550

Final Examination Tips

(Examination Time: 2 hours)

For the final examination you will be given 5 questions. Some of these will involve problem solving. For these you should review all class, test, homework and quiz problems. In addition, question 1 will involve several short questions, fill-up the blanks, or multiple choice questions. For these, thoroughly review the following areas introduced in the course:

(a)Define terms: Taylor series, positive and negative areas, surface stress nomenclature, body force per unit volume, stream function, velocity potential, vorticity, strength of a source, strength of a vortex, doublet, pressure coefficient, Reynolds number, skin friction coefficient, overall skin friction coefficient, major head loss, minor head loss, intensive property, extensive property, lift coefficient, drag coefficient, kinetic energy flux coefficient, boundary layer thickness, displacement thickness, momentum thickness, terminal velocity, parallel flow, fully-developed flow, Couette flow, Plane Poiseuille Flow, velocity profile, Stokes flow, separation point, reverse flow, stagnation pressure, stagnation streamline, static pressure, dynamic pressure, D'Alembert's Paradox, Ideal flow, substantial derivative, local and convective terms, principle of superposition, continuum hypothesis, internal and external flows, entrance length, favorable and adverse pressure gradient, critical Reynolds number.

(b)Methodology (of problems): Ideal Flows, Mass-conservation in boundary layers, Manometry, Inviscid Bernoulli equation, Engineering Bernoulli equation, Calculation of fully-developed flows, Head loss in pipe flows, Calculation of momentum integral method, Terminal Velocity, Friction drag calculations (use of overall skin-friction coefficient), pressure drag calculations, application of boundary conditions to solve for velocity profiles, stream function calculation, non-dimensionalization of governing equations, working with laminar and turbulent flow velocity profiles, application of integral equations in mass and momentum conservation form.

(c)Transport Phenomena:Concept of boundary layers, velocity profiles, exact and approximate methods of solution, Flow separation, Control of Flow Separation, Reverse Flow, Turbulent flows, Magnus effect, electrical analogy in pipe flows, ideal flow models of viscous flows, highly viscous flows, lift, streamlining, laminar vs. turbulent separation.

(d)Critical and Advanced Concepts: Stagnation points, stream function for a stagnation streamline,physical interpretation of Navier's equations, analytical behavior of non-D Navier-Stokes equations for high and low speed flows, simplifications of equations based on order analysis, simplification of equations based upon boundary conditions, use of assumptions and their verifications to solve problems, physical interpretations of governing equations, interpretation of flow kinematics and their equations, order analysis of boundary layer equations by Prandtl.