Purdue School of Engineering and Technology

Purdue School of Engineering and Technology

Fluid Mechanics

EEN 31000 / 3 Cr.

Continua, velocity fields, fluid statics, basic conservation laws for systems and control volumes, dimensional analysis. Euler and Bernoulli equations, viscous flows, boundary layers, flows in channels and around submerged bodies, and one-dimensional gas dynamics.


Munson, Young, Okiishi and Huebsch, Fundamentals of Fluid Mechanics, Seventh Edition, John Wiley & Sons, 2012.


1. Introduce the student to the fundamental theories and principles of fluid mechanics.

2. Develop practical problem solving skills in fluid mechanics including the use of equations of state, hydrostatic equation, conservation of mass (continuity), conservation of energy, conservation of linear momentum, fluid friction equations for laminar flow, turbulent conduit flow and open channel flow, external flow lift and drag equations, pump performance curves, and isentropic flow applied to nozzles. 


Upon successful completion of this course, students should be able to:

  1. Describe the scope of fluid mechanics [a4].
  2. Calculate the hydrostatic forces, pressures and moments on planar and curved submerged and floating surfaces [a1, a2, k4].
  3. Decide when it is appropriate to use ideal flow concepts and the Bernoulli equation [a4].
  4. Construct an appropriate control volume for a given engineering system and apply the principles of conservation of mass, momentum, and energy to this control volume in differential and integral forms [a1, a2].
  5. Present data or governing equations in non-dimensional form and apply dimensional analysis [a4].
  6. Solve for internal flow in pipes and channels through simple solutions of the Navier-Stokes equations, the Moody chart and the head-loss equation [a4].
  7. Solve for external (laminar and turbulent boundary layer) flows, evaluate lift and drag, know when there is possibility of flow separation [a4].
  8. Describe the propagation of sound; apply the basic equations of 1D, steady compressible flow and isentropic flow with area change to solve for unknown properties using appropriate property relations [a2, a4, k4].

Note: The letters within the brackets indicate the Program Outcomes of Mechanical Engineering.

  1. Fundamental concepts - continuum model, characteristics of fluids (2 periods)
  2. Fluid statics - hydrostatic pressure, forces on submerged surfaces (3 periods)
  3. Flow fields and fundamental laws- systems and control volumes, conservation of mass, momentum equation and the first law of thermodynamics (5 periods)
  4. Differential analysis of fluid flow, incompressible inviscid flow (4 periods)
  5. Dimensional analysis and similitude (2 periods)
  6. Flow in conduits and pipes - fully developed flow in pipes, minor losses, pipeline problems (4 periods)
  7. Boundary layers and flow over objects (4 periods)
  8. Introduction to compressible flow - speed of sound, stagnation properties (2 periods)
  9. Steady state, one-dimensional compressible flow - basic equations for isentropic flow, adiabatic flow with friction (2 periods)
  10. Tests (3 periods)