Compressible Aerodynamics Calculator - Computes the standard relations for compressible flow of a perfect gas. Isentropic flow relations, normal shock relations, and oblique shock relations can be calculated.

Advanced Aero/Hydrodynamics - Course materials from University of Vermont.

Albert Einstein's Analysis of the Brownian Motion - Free e-book by Walter Pfeifer describing the Brownian motion of suspended particles and Albert Einstein's formula.

An Analytic Solution for the Boundary Layer Equations - Develops a solution for the boundary layer equations in terms of complex variables. From these, a real-valued solution is derived for the boundary layer near a flat plate, showing an exponential rise to the main flow velocity. This solution is shown to have the self-similarity property.

Antibubbles - An antibubble is a ball of liquid surrounded by a thin film of air. Pictures, documentation and links.

Bernoulli's Principle Animation - Interactive animation shows how pressure and velocity in a fluid behave according to Bernoulli's Principle.

Calculations and Equations of Fluid Mechanics - An online fluid dynamics calculator.

Classical Fluid Mechanics Problem Solutions - Solutions to Classical Fluid Flow and Momentum Transfer Problems.

Convection in a Box - Experiments with smoke inside a plexiglass box challenge convectional wisdom. Smoke can unexpectedly act heavier than air and then spontaneously reverse.

The Effects of Water Hammer And Pulsations - Explanation of water hammer and pulsation inclusive the formula used to calculate the pressure increase.

eFluids - A one-stop internet resource for fluid dynamics and flow engineering professionals

eMicroNano - A free one-stop information resource for bio-, micro-, and nano-fluidic systems.

Engineers Edge: Fluid Flow, Hydraulic and Pneumatic - Fluids section of engineering directory. Provides definitions and practical applications.

ePower Propulsion and Combustion - A one-stop resource for professionals working in propulsion, power, and combustion fields.

ERCOFTAC - European Research Community on Fluids, Turbulence and Combustion. Portal to Fluid Dynamics database resources. Free registration required.

Fighting Rocket Engine Combustion Instabilities - Provides information on studies of how damping in a combustion chamber works and how the process can be influenced.

Flow Optimization - The site demonstrates a method of flow visualisation by using an optically active liquid. The advantages of the method and some example applications are described.

Fluid Power Net International (FPN) - Provides information and links to fluid power (hydraulics and pneumatics).

Incompressible Navier-Stokes Equations Reduce to Bernoulli's Law - Integrates the vector Navier-Stokes equation to obtain a vector form of Bernoulli's law. Provides interpretation and a mathematical basis for doing calculations.

Investigation into Aerodynamic Flutter Test Systems - An investigation into aerodynamic vibration excitation systems for in-flight flutter testing of general aviation aircraft. Richard R. Western, Melbourne, 1999.

Irrotational Plane Flows of an Inviscid Fluid - Lecture for those who need a refresher course on hydrodynamics fundamentals.

National Fluid Power Association - Acts as a forum where manufacturers, distributors, suppliers, customers and educators can act together to advance fluid power technology and strengthen the industry. Includes information on membership, events and industry news.

Navier-Stokes Equations - Equations describing how the velocity, pressure, temperature and density of a moving fluid are related.

Particulate Solid Research, Inc. - International industrial consortium that conducts applied research in fluidization, solids transport, and other fluid-particle areas. Overview of staff, programs, facilities, and information about membership, meetings and publications.

PivNet 2 - An introduction to the European Collaboration on Particle Image Velocimetry. Links to participating partners, information about courses, conferences and literature.

Potto Project: Fundamentals of Compressible Fluid Mechanics - Open and free content downloadable textbooks for engineering.

Prandtl–Glauert Singularity - Wikipedia article on the point at which a sudden drop in air pressure occurs and which is the cause of the visible condensation cloud that may surround an aircraft.

University of Colorado Flow Visualization Course - A course in the physics and art of fluid flow for engineering and fine arts photography students at the University of Colorado, Boulder. The student gallery has a wide assortment of images ranging from soap films to clouds.