Publication detail
Combined jet and exhaust flow interacting with an obstacle
KREJČÍ, V. KOŠNER, J.
English title
Combined jet and exhaust flow interacting with an obstacle
Type
Paper in proceedings (conference paper)
Language
en
Original abstract
The article deals with a combined jet and exhaust flow as generated by an Aaberg exhaust hood and its interaction with the obstacle. The obstacle was a disc aligned with the jet flow and located coaxially to the jet. The diameter of the disc was 550 mm. The air terminal dimensions were: supply slot diameter 200 mm and supply slot width 4 mm. Two operation modes were tested. First, jet only flow at 10 m/s of the exit jet velocity. Second, combined flow mode at which the exhaust velocity was set to 9.13 m/s, keeping the jet exit velocity fixed. The hood operational parameter I was thus 0.6. The obstacle surface roughness was varied by means of sand paper to map the hysteretic jet behaviour when moving the obstacle towards or away from the air terminal.
Keywords in English
Aaberg hood, radial jet – wall interaction, hysteresis, wall roughness
Released
2010-11-24
Publisher
Technical University of Liberec
Location
Liberec
ISBN
978-80-7372-670-6
Book
Proceedings of the international conference Experimental Fluid Dynamics 2010
Pages from–to
301–309
Pages count
8
BIBTEX
@inproceedings{BUT35103,
author="Vladimír {Krejčí} and Jan {Košner}",
title="Combined jet and exhaust flow interacting with an obstacle",
booktitle="Proceedings of the international conference Experimental Fluid Dynamics 2010",
year="2010",
series="1",
number="1",
pages="301--309",
publisher="Technical University of Liberec",
address="Liberec",
isbn="978-80-7372-670-6"
}