Fluid Dynamics
 
 
Subject Code: EME3026
Aim of Subject: To provide students with the understanding in the theories and applications of fluid mechanics.
Learning Outcome of Subject: At the completion of the subject, students should be able to :
  • Have acquired the basic principles of fluid mechanics.
  • Identify different flow regimes (such as ideal versus viscous flows, laminar versus turbulent flows, incompressible versus compressible flows, and steady versus transient flows) and utilize the associated concepts and tools to analyze and solve engineering fluid-mechanical problems.
  • Understand the operating principles of various turbomachines and select the most appropriate ones (type and size) in practical situations.
  • Undertake, under supervision, laboratory experiments on pump characteristics and jet flow/impact.
Programme Outcomes:
  • Ability to acquire and apply fundamental principles of science and engineering(45%)
  • Capability to communicate effectively(10%)
  • Acquisition of technical competence in specialised areas of engineering discipline(25%)
  • Ability to identify, formulate and model problems and find engineering solutions based on a systems approach(10%)
  • Understanding and commitment to professional and ethical responsibilities(5%)
  • Ability to work independently as well as with others in a team(5%)
Assessment Scheme:
  • Lab Experiments - work in groups, lab report writing, oral assessment at the end of lab (10%)
  • Tutorial / Assignment - group assignment,focus group discussion at tutorial,to enhance understanding of basic concepts in lecture(15%)
  • Test Quiz - written exam (15%)
  • Final Exam - written exam (60%)
Teaching and Learning Activities: 51 hours (lectures,tutorials and laboratory experiment)
Credit Hours: 3
Pre-Requisite: EME1026: Fluid Mechanics and
EEM1026: Engineering Mathematics II
References:
  • B.R. Munson, D.F.Young and T.H. Okiishi, “Fundamentals of Fluid Mechanics”, 4th Edition, John Wiley and Sons, 2002 (Textbook)
  • V.L. Streeter and E.B. Wylie, "Fluid Mechanics", S.I. Edition, McGraw-Hill, 1981.
  • R.W. Fox and A.T. McDonald, "Introduction to Fluid Mechanics", S.I. Edition, John Wiley, 1994.
  • J.K. Vennard and R.L. Street, "Elementary Fluid Mechanics", S.I. Version, John Wiley and Sons, 1990.

Subject Contents

  • Turbomachinery

    • Dimensional analysis of rotodynamic machines, performance curves. Use of moment-of-momentum equation, blade angles. Centrifugal pump, reaction turbines. Pelton wheel. Draft tubes, cavitations phenomenon.
     
  • Potential Flow

    • Stream function, velocity potential, vorticity and circulation. Sources, sinks, superposition. Kutta-Joukowski theorem.
     
  • Laminar Viscous Flow

    • Navier-Stokes?equation. Non-dimensionalization, some exact solutions. High and low Reynolds number flow. Laminar boundary layer.
     
  • Turbulent Flow

    • Nature of turbulence. Time-averaging of equations, Reynolds stress, Mixing length theories. Universal velocity profile. Turbulent boundary layer.
     
  • Compressible Flow

    • One-dimensional flow equations. Stagnation properties. Subsonic-supersonic transitions. Converging-diverging nozzles, venturi meters. Normal shocks, Rankine-Hugoniot relations. Fanno and Rayleigh lines. Compressible flow in pipes. Use of gas tables.
     
  • Unsteady Flow

    • Unsteady flow in pipes. Water hammer and surge control.
     

Laboratory

1. Pump Characteristics
2. Jet Flow/Impact