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Dimensional analysis and similitude; Poiseuille and Couette flow; Flow separation; Cavitation; Turbulence, boundary layers and friction drag; Potential flow and superposition theory; Aerodynamic forces; Pipe network analysis; Analysis of turbomachinery (turbines and pumps); Pump performance and selection; Introduction to compressible flow.
This course builds on ENME204 Introduction to Thermo-fluids Engineering and exposes the students to further fluid mechanics theories and applications to give them solid foundations. It will be the last compulsory fluid mechanics course in the mechanical engineering curriculum, and aims to complete the formal “generalist” fluid mechanics training of the students and prepare them for specialised elective courses in their final year of study and/or postgraduate studies. The course objective is to give the students the necessary theoretical understanding to autonomously analyse and solve complex engineering problems involving fluids as they arise in irrigation, power generation, aeronautics, biotechnologies, etc. Not only should the student be able to apply existing theories/concepts when appropriate, they should also be able to adapt them to suit a particular situation. Importantly, this course should also give the students the underlying insight which is necessary to become knowledgeable and reliable users of Computational Fluid Dynamics packages which are routinely used by mechanical engineers.
On successful completion of this course students will be able to: Apply dimensional analysis and deduce the key dimensionless parameters for a specific flow problem Apply similitude theory to design scaled physical models Derive the conservation laws in differential form, explain the physical models used in the derivations, and justify the assumptions made With reasonable assumptions and simplifications, apply the conservation laws to simple geometries (Poiseuille or Couette flow types) to compute the velocity field, the flow rate and the pressure drop Calculate the pressure drop in laminar and turbulent flow in pipes and fittings, and explain the role of turbulence Analyse simple piping networks and calculate the mass flow rates and pressure drops in component branches Predict flow separation and cavitation Explain boundary layer theory and apply it to simple geometries to estimate friction drag Explain potential flow theory and apply the superposition principle to characterize the flow around simple bodies (Rankine body, plate, cylinder) Compute the resultant aerodynamic forces on surfaces using aerodynamic coefficients Explain the working principles of turbomachinery (conservation of angular momentum, velocity triangles, etc.) and apply them to estimate design specifications Read/interpret pump performance curves and select a pump for a specific piping network Apply the principles of isentropic compressible flow to calculate the mass flow rate and average velocities in sub- and supersonic nozzles Explain the formation and effects of normal and oblique shock waves
ENME204
ENME345, ENMT448, ENME414
Sid Becker
Mark Jermy
Patrick Geoghegan
Minimum required to Pass: students must meet both of the following, at least 50% in total course marks and at least 50% on the combined total of the uncurved marks (marks before scaling) on the test and the Final Exam.
F. M White; Fluid Mechanics ; 5th; McGraw Hill.
Domestic fee $901.00
International fee $4,863.00
* All fees are inclusive of NZ GST or any equivalent overseas tax, and do not include any programme level discount or additional course-related expenses.
For further information see Mechanical Engineering .