English versionTest facilitiesTEST FACILITIES FOR MICROMETEOROLOGY AND WIND ENGINEERINGAtmospheric wind tunnel
Atmospheric wind tunnel
This open-circuit atmospheric wind tunnel has a 26-metre long test section and a cross-section of 2 m x 2 m, with transparent walls and floor and ceiling adjustable in height. Its centrifugal fan powered by a 45kW motor allows for maximum wind speed of 10 m/s.
It is therefore a remarkable piece of equipment to investigate atmospheric boundary layers and their interaction with vegetation or urban canopies at 1/200 scale.
It is therefore a remarkable piece of equipment to investigate atmospheric boundary layers and their interaction with vegetation or urban canopies at 1/200 scale.
Besides measurement of reference flow parameters (i.e reference wind speed, flow temperature, hygrometry, atmospheric pressure), different types of measurement method can be employed in this wind tunnel:
- 32-channel acquisition system equipped with 24 thermal anemometers dedicated to the use of single or multiple hot-wire probes,
- stereoscopic Particle Image Velocimetry (SPIV) system composed of a 200mJ Nd-YAG pulsed laser, two 4M pixels cameras with their dedicated synchronization, acquisition and post-processing unit,
- drag balance designed for the measurement of canopy element drag (< 0.5N),
- unsteady wall-pressure transducers (8 channels) and mean pressure transducers (96 channels).
Fully operational since 2009, this wind tunnel has been used in the following research projects :
- EM2PAU (2008-2012): flow within street canyons
- VEGDUD (2010-2014): dynamical interaction between vegetation canopies and the lower atmosphere and vegetation-urban terrain transition
- TIPEE (2013-2016): evaluation of the pressure coefficient on a building in a restored neighborhood
- URBANTURB (2015-2018): dynamical coupling between the urban canopy and the atmospheric surface layer
Published on March 28, 2017
Updated on January 21, 2021
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RESEARCH GROUP IN CHARGE OF THE TEST FACILITIES FOR MICROMETEOROLOGY & WIND ENGINEERING
Team DAUC (Dynamics of Urban and Coastal Atmosphere)
CONTACT
If you are in need of special testing, contact:
Laurent PERRET
CONTACT
If you are in need of special testing, contact:
Laurent PERRET