Fluids

Fluids#

The following topics on fluids are considered prerequisite knowledge for the civil engineering MSc-program:


Mechanics of fluids

Subject

Topic category / Learning objectives

Open Educational Resources[1]

Remarks

Mechanics of fluids

Hydrostatics: Pressure forces, vertical force, and pressure forces on inclined surfaces.

➤ Student can:
- Make calculations of pressures, piezometric levels and horizontal and vertical forces on walls in a stationary fluid

- Fluids – Lecture 2 Notes[2]
- Hydrostatic (fluid) pressure[3]
- Excercise 1
- Excercise 2
- Excercise 3

-Lecture notes: hydrostatic equation
- Make sure you check out the excercises.

Pascal’s law, Torricelli’s experiment, and Archimedes’ principle.

➤ Student can:
- Determine the pressure exerted by a fluid
- Determine the time to fill or empty a barrel using Bernoulli to come to Torricelli equation.
- Determine the bouyant force in a fluid.

- Pascal’s law[4]
- Torricelli’s experiment[5]
- Archimedes principle and buoyant force[6]
- What is buoyant force? [6]

- Make sure you check out the excercises on Archimedes principle!


Fluid dynamics

Subject

Topic category / Learning objectives

Open Educational Resources[1]

Remarks

Fluid dynamics

Fluid properties

➤ Student can:
- Indicate how water differs from other (liquid) substances and how the liquid properties influence the flow, using dimensionless key figures

- Fluid properties[7]

- Basics of Fluid Mechanics: Introduction chapters 1.1, 1.3, 1.4 and 1.5.

Euler equations and application to fluid mechanics, Lagrangian and Eulerian derivatives, streamlines, and Reynolds number

➤ Student can:
- Understand and analyze the trajectory of a water particle, streamlines and streamtubes and also determine the spatial derivatives of these in a natural coordinate system and in a Cartesian coordinate system,
- Determine the relationship between pressure (differences) and speed (changes) of a water particle

- Euler’s Equation of Motion[8]
- Streamlines, Pathlines, and Streaklines: Eulerian vs. Lagrangian[9]
- Reynolds number: laminar vs turbulent flow[9]

Euler and Bernoulli

➤ Student can: - Apply the Euler and Bernoulli equation in the correct context and known the assumptions related to the use of these equations.


- What is Bernoulli’s equation?[6]
- Bernoulli equation[2]

-Bernoulli equation and its applications


Open channels

Subject

Topic category / Learning objectives

Open Educational Resources[1]

Remarks

Open channel hydraulics

Balance equations (mass, momentum, energy)

➤ Student can:
- Calculate forces and energy dissipation during cross-sectional changes in open channels and pipes, but also for situations involving siphons, pumps and turbines.

- Integral balance equations[10]

Friction

➤ Student can:
- Calculate the shear stress distribution and wall resistance for laminar and turbulent flows.
- Analyze and calculate the total resistance, hydraulic head, pressure profile and required pump power in closed pipes.

In progress

Morphology

➤ Student can:
- to broadly describe sediment transport and its relationship to morphology, both qualitatively and quantitatively.

In progress

Open channel flow

Backwater physcis and backwater equation

➤ Student can: - Determine backwater curves in open channels using the concepts of critical and equilibrium depth.
- Determine the effects of local changes (eg: discharge withdrawal, culverts, bridges) on the backwater curves in an open channel.

- Backwater curve[12]

Shallow water equations

➤ Student can: - Understand and apply the shallow water equations to model and analyze fluid flow in shallow water systems.

- Shallow water equations[13]

Waves

➤ Student can:- Use the principles of wave theory, predict wave conditions based on wind and propagation in open water.

- Waves in fluids[14]

Interaction with control structures

➤ Student can: - Describe and interpret the flow pattern around rigid bodies (such as bridge pillars or buildings), using the Reynolds number and the concepts of boundary layer, detachment and wake formation.
- Calculate the forces on rigid bodies in a current (bridge pier, building).

In progress…

Flood wave propagation

➤ Student can: - Comprehend and model flood wave propagation, demonstrating the ability to analyze the movement and behavior of flood waves in different hydrological scenarios.

In progress…

Tidal propagation

➤ Student can: - Analyze and predict tidal propagation, showcasing the ability to understand the movement and behavior of tidal waves in various coastal and marine environments.

In progress…