Back to Search Start Over

Energy dissipation by jet diffusion in stormwater drop shafts

Authors :
N. Rajaratnam
M. A. Barber
G. A. Johnston
Source :
Canadian Journal of Civil Engineering. 20:374-379
Publication Year :
1993
Publisher :
Canadian Science Publishing, 1993.

Abstract

This paper considers energy dissipation by jet diffusion in drop shafts used in urban stormwater systems, using the theory of circular turbulent jets. It presents experimental results on the decay of the maximum velocity in the jet for D/d in the range of 5 to 15, where D is the diameter of the chamber and d is the diameter of the jet at the water surface in the diffusion chamber. It was found that when D/d is small [Formula: see text], the decay of the velocity in the jet is appreciably larger than that in a jet in a large stagnant ambient. Key words: jet diffusion, drop shafts, stormwater systems, turbulent flow.

Details

ISSN :
12086029 and 03151468
Volume :
20
Database :
OpenAIRE
Journal :
Canadian Journal of Civil Engineering
Accession number :
edsair.doi...........fb992a81a62bfac546b640b876b2a5b5
Full Text :
https://doi.org/10.1139/l93-052