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Experiments in a 1:10 scaled road traffic ventilation test facility and comparison with theory

In a 1:10 scaled facility for road-tunnel ventilation tests a jet fan model is placed at the tunnel centre-line and experiments are made with various settings of the jet fan and the tunnel velocity. Extensive pressure and velocity measurements are made and the fan-thrust force is also measured. The aim is to gain confidence in the measurement technique by checking the axial momentum balance for the flow in a tunnel segment that contains a jet-fan model. Results are alalysed in detail and compared with a theoretical model for longitudinal tunnel ventilation.

Datum rapport
8 december 1999
Auteurs
Bruin, A.C. de
Auteur
A.C. de Bruin; Nationaal Lucht- en Ruimtevaartlaboratorium
Uitgever
NLR.
Annotatie 
81 p. 
fig., tab.
(NLR report ; NLR-CR-99534)
Investigation carried out under a contract awarded by Bouwdienst Rijkswaterstaat (RWS, BD)
With 9 ref.
Documentnummer
136195