The new inlet system designed for the LUFTHANSA AIRBUS A340-600.

The pylon has a length of 30 cm, and brings the inlet appertures outside the boundary layer. The picture shows the camera, situated in the pylon itself. The lowermost central tube is the inlet for air in which aerosol will be counted and from which aerosol will be collected. The blue extension (connected with 3 struds) is a shroud that optimizes the airflow. The wider part, 6 cm diameter, containes the diffusor in which air is slowed down from the cruising speed (250 m/s) to only a fraction thereof. On the left is the inlet tube for trace gases, and on the right (thinner tube) are the 2 inlets for water and water plus ice. Not visible is the DOAS system, that has several viewing ports connected via optical fibres to spectrographs in the CARIBIC measurement container. Just like satellites DOAS "looks" into the atmosphere for detecting pollution.

The main steps of development:
new air inlet system
1. A 2dimensional
Computational Fluid Dinamics
(CFD) model study		 2. A 3dimensional
CFD pressure distribution
simulation
new air inlet system new air inlet system
3. Computer aided
engineering design 		4. The realisation of the
new air inlet system.
Inspecting the special
intake system for
air and aerosols
(old version)