# LFD Facilities

### Overview

The LFD is active in experimental, numeric and theoretical aspects of fluids dynamics.

# Experimental tools

## Wind & Soap tunnels

### Larger Closed-loop wind tunnel

This closed-loop tunnel has a test section of $400\times 400\, \text{mm}^2$

### Smaller Closed-loop wind tunnel

This closed-loop tunnel has a test section of $100\times 100\, \text{mm}^2$

### Soap film tunnel

The soap-film tunnel is made of thin wires (white lines on the picture) between which a soap-film is ceated. The flow is gravity driven, with the soap liquid entering by the higher part and being collected at the bottom. The resulting flow is the best experimental approximation of a 2D flow. The differences between 2D and 3D turbulent flows are studied using this setup.

## Acquisition and other experimental tools

### PIV setups

• We are equipped with a 4Hz Lavision Stereo PIV Setup, using a double-cavity laser and two double frame cameras. Furthermore higher speed PIV is realized with continuous lasers and high speed cameras.
• Furthermore higher speed PIV is realized with continuous lasers and high speed cameras.

### Schlieren Setup

The LFD is a leading edge actor in the re-use of the Schlieren shadowgraphy as a modern tool. The collaboration with INRIA through the Huracan team allowed to devellop velocimetry tools based on Schlieren visualisations.

# Numerical tools

Though no high-performance cluster is available at the laboratory, respectable DNS simulations can still be achieved. Higher performance machines are available through our large collabaration network.