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School of Chemical and Environmental Engineering

Now offering two distinct diplomas: Chemical Engineering and Environmental Engineering

Fluid Mechanics


School Chemical and Environmental Engineering
Course Level Undergraduate
Direction -
Course ID ENVE 221 Semester 3rd
Course Category Required
Course Modules Instruction Hours per Week ECTS

Lectures, practice exercises and laboratory sessions

Th=3, E=1, L=2
Course Type Scientific area
Instruction/Exam Language Greek
The course is offered to Erasmus students No
Course URL https//  (in Greek)



Learning Outcomes

Upon successful completion of the course, a student will be able to:

  • Recognize the effect of fluid properties on key problems.
  • Define basic principles of hydrostatics and momentum, the meaning of the layer and the mechanisms of interaction between fluids and solids.
  • Appliy Bernoulli and Energy equations to basic problems.
  • Explain the principles of dimensional analysis and the importance of dimensionless numbers.
  • Describe Euler-Lagrange flow, permanent and non-permanent flow, particle orbits and flow lines.
  • Evaluate energy losses in closed pipelines in the case of turbulent flows and model turbulent trends with the help of turbulent viscosity.
  • Process experimental and numerical data.
  • Solve equations for basic fluid flows, practical problems with the help of the Bernoulli equation and energy equation, problems related to hydrostatics and hydrodynamics, fluid flow problems in closed conductors and the use of dimensional analysis.
General Competencies/Skills
  • Autonomous work capability
  • Design and manage projects


    1. Properties and characteristics of Fluids.
    2. Units of measurement, viscosity, continuity, density, specific volume, specific weight, specific gravity, perfect gases, pressure, vapor pressure, surface tension and capillary phenomena with applications in porous material (soil).
    3. Point pressure, basic equations of static fluids
    4. Measurements using manometers in environmental applications.
    5. Forces in submerged levels and curved surfaces, buoyancy, forces in dams, gates.
    6. Types of Forces, Fundamental Laws (Principle of Conservation of Mass, Newton's Second Law - Quantity of Motion Theorem, Principle of Conservation of Energy).
    7. Idea of ​​system and selected reference volume, continuity equation, movement quantity equation, energy equation.
    8. Mass and Energy equilibria in Environmental Systems, transfer of pollutants in aquatic systems.
    9. Non-dimensional numbers for analysis of Environmental Systems, dimensions and units, P-Theorem, Dimensional parameters, Similarity.
    10. Reynolds number, Froude number, Dimensional analysis for closed pipe flow models and in hydraulic structures.
    11. Permanent Two-Dimensional flow between slabs.
    12. Flow in streams, rivers and closed pipelines, main and secondary losses.
    13. Boundary layer, friction.


Lecture Method Direct (face to face)
Use of Information and Communication Technology Specialized software, Power point presentations, E-class support
Instruction Organisation Activity Workload per Semester
- Lectures & tutorial exercises 39
- Study, projects and literature review 47
- Tutorials 13
- 5 sets of lab exercises 26
Course Total 125

Assessment Method

Ι. Written final examination (85%) that includes:
   - Theoretical problems with data to be resolved.

ΙΙ. Laboratory exercises (15%).


  • Fluid Mechanics, Streeter/Wylie/Bedford
  • Fluid mechanics with engineering applications, Daugherty/Franzini/Finnemore


Course Instructor: Professor G. Karatzas (Faculty - ChEnvEng)
Lectures: Professor G. Karatzas (Faculty - ChEnvEng)
Tutorial exercises:  
Laboratory Exercises: