One of the challenges of experimental fluid dynamics is capturing information about a flow that varies in three spatial dimensions and time. Experimentalists have developed many techniques over the years–some qualitative and some quantitative–all of.
Pasadena teacher Von Carman famous for Karman's Vortex Street. When Madelbrot got to CalTech he discovered that von Carman was staying in Paris! Credit Sanjay Kumar and George Laughlin / Sacred Geometry
Fluids and gases can move in strange and mysterious ways that aren’t always apparent to our unaided eyes. It's only with the use of tracers or dyes, photographic techniques and a bit of luck, that we can capture fluid dynamics in action.
n fluid dynamics, Bernoulli's principle states that for an inviscid flow of a nonconducting fluid, an increase in the speed of the fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy.
Vibrant liquid macro photography by Michael Suppan Gorgeous captures of a fleeting, fluid moment in time. Reminiscent of Harold Edgerton’s iconic Milk Drop Coronet, perhaps the most perfect fluid dynamics photo ever taken.
Flow Visualization in Fluid Dynamics - Experiments and Methods